noc

knock on/against/out/off/over等，在不同的语境下，有多种含义。knock at 敲(门、窗等)，knock off 击倒;停工;中断，knock down 击倒;拆卸，knock at the door 敲门;把……撞倒;撞墙，knock out 敲空;击倒;打破;使筋疲力竭，knock it off 停止做;住口,别再讲下去了，knock on the door 敲门，knock over 打翻;撞倒，knock in (把钉子)钉入，knock on wood 敲木头。

敲门

1、knock at the door 和knock on the door 都是敲门的意思，二者区别不大。2、at强调一个点,on强调面。at 常和knock 名词形式连用；on常和knock 动词形式连用，如果knock用作名词时，用a。

at强调一个点,on强调面 根据语境的时候有区别其实问题应该也不大祝学习进步，天天快乐！满意请采纳！有问题追问！谢谢！：）.

【 #英语资源# 导语】knock有敲击;互撞;攻击等意思，那么你知道knock的用法吗?下面跟着 无 一起来学习一下，希望对大家的学习有所帮助! 【篇一】knock的用法大全 　　knock的用法1：knock用作名词的基本意思是“狠狠的一击,打击”,用于比喻可指“不幸,挫折,艰苦”,引申可指“敲击声,敲击信号”。 　　knock的用法2：knock是抽象名词,但却可数,可加不定冠词修饰,也可用复数形式,表示复数概念。 　　knock的用法3：knock后接at〔to〕的介词短语表示侧重敲击的对象; 接on的介词短语侧重敲击的位置。 　　knock的用法4：knock的基本意思是用手、拳等硬物“敲打”,指出声地、连续地猛击,引申可指发出敲击或爆裂的声响。还可表示“批评”“数落”“非难”。 　　knock的用法5：knock可用作及物动词,也可用作不及物动词。用作及物动词时,可接名词或代词宾语,也可接以形容词充当补足语的复合宾语。可用于被动结构。 　　knock的用法6：knock是瞬间动词,如表示重复动作,须用进行体。 【篇二】knock的常用短语 　　knock about〔around〕1 (v.+adv.) 　　knock about〔around〕2 (v.+prep.) 　　knock about〔around〕 with (v.+adv.+prep.) 　　knock against (v.+prep.) 　　knock at (v.+prep.) 　　knock away (v.+adv.) 　　knock back (v.+adv.) 　　knock down (v.+adv.) 　　knock in1 (v.+adv.) 　　knock in2 (v.+prep.) 　　knock into (v.+prep.) 　　knock off1 (v.+adv.) 　　knock off2 (v.+prep.) 　　knock on1 (v.+adv.) 　　knock on2 (v.+prep.) 　　knock out (v.+adv.) 　　knock out of (v.+adv.+prep.) 　　knock over (v.+adv.) 　　knock through (v.+adv.) 【篇三】knock的用法例句 　　1. Find Bernie and get him to knock an agreement together. 　　找到伯尼，让他尽快拟好一份协议。 　　2. They decided to knock the two rooms into one. 　　他们决定把两间屋子打通连成一间。 　　3. What they said was a real knock to my self-confidence. 　　他们的话是对我自信心的一次重大打击。 　　4. He had many motives for wanting to knock off Yvonne. 　　他有很多杀伊冯娜的动机。 　　5. When we stop enjoying ourselves we"ll knock it on the head. 　　等玩够了，我们就会结束。 　　6. They knock around on weekends in grubby sweaters and pants. 　　他们周末穿着邋遢的毛衫和裤子到处闲逛。 　　7. German cameras at knock-down prices flooded the British market. 　　德国产的廉价相机充斥着英国市场。 　　8. If I get this report finished I"ll knock off early. 　　如果我写完这篇报告，我就会早点下班。 　　9. Could you possibly knock me up some scrambled eggs? 　　你能尽快给我弄个炒鸡蛋吗? 　　10. The market might abandon the stock, and knock down its price. 　　市场可能会抛售该股票，从而令其股价下跌。 　　11. Knock at my window at eight o"clock and I"ll be ready. 　　8点钟敲我的窗，我会准备好的。 　　12. I"m prepared to knock five hundred pounds off but no more. 　　我做好了降500英镑的打算,但不会再低了. 　　13. It manages to knock rents down to $1 per square foot. 　　成功地将租金降到每平方英尺1美元。 　　14. There was a light knock at the door. 　　有人在轻轻地敲门。 　　15. They heard a knock at the front door. 　　他们听到前门有人敲门。

Knock on: 敲（门、窗等） 例句与用法: 1. He accidentally knocked on (the pass from Jones). 他非故意犯规, 用手向前击了（从琼斯传来的）球. 2. Jim sat up when he heard the knock on his bedroom door. 吉姆听到敲寝室门的声音时便坐了起来。 3. Please do not enter before knocking on the door. 进来前请先敲门。 Knock at: vt. 敲 例句与用法: 1. There was a furious knock at the door. 有人在猛烈地敲门。 2. Did I hear a knock at the door? 是有人敲门吗? 3. Did you hear the knocks at the door? 你听到敲门声了吗这两次词的区别不是很大，有时可以通用，但是一般表示敲在人身上的某个部位习惯用knock on 而不是knock at .如: Knock on her head 等。

knock on 撞击撞出；敲击（门、窗） knock at 敲（门、窗等） knock off 击倒；停工；中断 knock down 击倒；拆卸 knock at the door 敲门；把……撞倒；撞墙 knock out 敲空；击倒；打破；使筋疲力竭 knock it off 停止做；住口,别再讲下去了 knock on the door 敲门 knock over 打翻；撞倒 knock in （把钉子）钉入 knock on wood 敲木头,企求好运；吉人天相 knock up 敲门唤醒；[英口]筋疲力尽；往上敲 knock back （摇把）反击,（活塞）逆行,（曲轴）反转；反座；回击,击退；使...大吃一惊 knock against 撞击,与…冲突；偶然遇见 knock sensor 爆振传感器；进气流量传感器 knock into 撞上；与…相撞 knock off work 敲落工作；歇工

knockatthedoor和knockonthedoor都是敲门的意思，个人认为，二者区别不大，at常和knock名词形式连用；on常和knock动词形式连用

Knock on:敲（门、窗等）例句与用法:1. He accidentally knocked on (the pass from Jones).他非故意犯规, 用手向前击了（从琼斯传来的）球.2. Jim sat up when he heard the knock on his bedroom door.吉姆听到敲寝室门的声音时便坐了起来。3. Please do not enter before knocking on the door.进来前请先敲门。Knock at:vt. 敲例句与用法:1. There was a furious knock at the door.有人在猛烈地敲门。2. Did I hear a knock at the door?是有人敲门吗?3. Did you hear the knocks at the door?你听到敲门声了吗？前者表示一种正常情况下的敲门,后者则表示非正常情况下的敲门如小孩子喜欢用背去敲门.而常人则抬手齐耳处敲门.knock on有一种持续性，常有引申意义（如击打某人的内心），knock at强调的是对象，敲门、窗之类的用后者比较好

当knock作为名词的时候,介词用at,如a knock at the door 敲门声 动词是介词用on,如knock on the door 敲门

u3002

Knock on: 敲（门、窗等） 例句与用法: 1. He accidentally knocked on (the pass from Jones). 他非故意犯规, 用手向前击了（从琼斯传来的）球. 2. Jim sat up when he heard the knock on his bedroom door. 吉姆听到敲寝室门的声音时便坐了起来。 3. Please do not enter before knocking on the door. 进来前请先敲门。 Knock at: vt. 敲 例句与用法: 1. There was a furious knock at the door. 有人在猛烈地敲门。 2. Did I hear a knock at the door? 是有人敲门吗? 3. Did you hear the knocks at the door? 你听到敲门声了吗这两次词的区别不是很大，有时可以通用，但是一般表示敲在人身上的某个部位习惯用knock on 而不是knock at .如: Knock on her head 等。

Knock on: 敲（门、窗等） 例句与用法: 1. He accidentally knocked on (the pass from Jones). 他非故意犯规, 用手向前击了（从琼斯传来的）球. 2. Jim sat up when he heard the knock on his bedroom door. 吉姆听到敲寝室门的声音时便坐了起来。 3. Please do not enter before knocking on the door. 进来前请先敲门。 Knock at: vt. 敲 例句与用法: 1. There was a furious knock at the door. 有人在猛烈地敲门。 2. Did I hear a knock at the door? 是有人敲门吗? 3. Did you hear the knocks at the door? 你听到敲门声了吗？ 没什么大区别。

knock at和knock on的区别为：一、指代不同1、knock at：捶。2、knock on：敲打。二、侧重点不同1、knock at：日常使用多用knock at。2、knock on：这个词在戏院发信号让演员上台时用的多。三、引证用法不同1、knock at：knock用作名词的基本意思是“狠狠的一击，打击”，用于比喻可指“不幸，挫折，艰苦”，引申可指“敲击声，敲击信号”。2、knock on：knock的基本意思是用手、拳等硬物“敲打”，指出声地、连续地猛击，引申可指发出敲击或爆裂的声响。还可表示“批评”“数落”“非难”。

Knock on:敲（门、窗等）例句与用法:1. He accidentally knocked on (the pass from Jones).他非故意犯规, 用手向前击了（从琼斯传来的）球.2. Jim sat up when he heard the knock on his bedroom door.吉姆听到敲寝室门的声音时便坐了起来。3. Please do not enter before knocking on the door.进来前请先敲门。Knock at:vt. 敲例句与用法:1. There was a furious knock at the door.有人在猛烈地敲门。2. Did I hear a knock at the door?是有人敲门吗?3. Did you hear the knocks at the door?你听到敲门声了吗？前者表示一种正常情况下的敲门,后者则表示非正常情况下的敲门如小孩子喜欢用背去敲门.而常人则抬手齐耳处敲门.knock on有一种持续性，常有引申意义（如击打某人的内心），knock at强调的是对象，敲门、窗之类的用后者比较好

knock at和knock on的区别为：一、指代不同1、knock at：捶。2、knock on：敲打。二、侧重点不同1、knock at：日常使用多用knock at。2、knock on：这个词在戏院发信号让演员上台时用的多。三、引证用法不同1、knock at：knock用作名词的基本意思是“狠狠的一击，打击”，用于比喻可指“不幸，挫折，艰苦”，引申可指“敲击声，敲击信号”。2、knock on：knock的基本意思是用手、拳等硬物“敲打”，指出声地、连续地猛击，引申可指发出敲击或爆裂的声响。还可表示“批评”“数落”“非难”。

Knock on: 敲（门、窗等） 例句与用法: 1. He accidentally knocked on (the pass from Jones). 他非故意犯规, 用手向前击了（从琼斯传来的）球. 2. Jim sat up when he heard the knock on his bedroom door. 吉姆听到敲寝室门的声音时便坐了起来。 3. Please do not enter before knocking on the door. 进来前请先敲门。 Knock at: vt. 敲 例句与用法: 1. There was a furious knock at the door. 有人在猛烈地敲门。 2. Did I hear a knock at the door? 是有人敲门吗? 3. Did you hear the knocks at the door? 你听到敲门声了吗？ 没什么大区别。

可以互用

当knock作为名词的时候,介词用at,如aknockatthedoor敲门声动词是介词用on,如knockonthedoor敲门

"Knock at"和"knock on"都是表示敲门的意思，但它们在用法和含义上有一些区别。"Knock at"通常用于描述敲门的动作，表示在门上轻轻地敲击。它强调的是敲门的动作本身。例如，"He knocked at the door and waited for someone to answer."（他敲了敲门，等待有人回答。）"Knock on"则更多地用于描述敲门的目的或意图，表示为了引起注意或请求进入而敲门。它强调的是敲门的目的。例如，"She knocked on the door to ask if she could borrow some sugar."（她敲门是为了问能否借一些糖。）总结来说，"knock at"强调敲门的动作本身，而"knock on"强调敲门的目的或意图。

Knock on:敲（门、窗等）例句与用法:1. He accidentally knocked on (the pass from Jones).他非故意犯规, 用手向前击了（从琼斯传来的）球.2. Jim sat up when he heard the knock on his bedroom door.吉姆听到敲寝室门的声音时便坐了起来。3. Please do not enter before knocking on the door.进来前请先敲门。Knock at:vt. 敲例句与用法:1. There was a furious knock at the door.有人在猛烈地敲门。2. Did I hear a knock at the door?是有人敲门吗?3. Did you hear the knocks at the door?你听到敲门声了吗？前者表示一种正常情况下的敲门,后者则表示非正常情况下的敲门如小孩子喜欢用背去敲门.而常人则抬手齐耳处敲门.knock on有一种持续性，常有引申意义（如击打某人的内心），knock at强调的是对象，敲门、窗之类的用后者比较好

knock on 敲(门、窗等);撞 knock at 敲(门,窗等) Knock on the door before you enter. 进屋之前要先敲门. When I fell I got a terrible knock on the head. 我摔倒时头撞得很厉害. He got a nasty knock on the head. 他头部遭到重重一击. Did I hear a knock at the door? 是有人敲门吗? I was wakened by a knock at the door. 敲门声把我吵醒了

knock on一般就是knock on the door，但是有时候也用at，这是新东方的解释，你看下，帮助理解。Knock on: 敲（门、窗等） 例句与用法: 1. He accidentally knocked on (the pass from Jones). 他非故意犯规, 用手向前击了（从琼斯传来的）球. 2. Jim sat up when he heard the knock on his bedroom door. 吉姆听到敲寝室门的声音时便坐了起来。 3. Please do not enter before knocking on the door. 进来前请先敲门。 Knock at: vt. 敲 例句与用法: 1. There was a furious knock at the door. 有人在猛烈地敲门。 2. Did I hear a knock at the door? 是有人敲门吗? 3. Did you hear the knocks at the door? 你听到敲门声了吗这两次词的区别不是很大，有时可以通用，但是一般表示敲在人身上的某个部位习惯用knock on 而不是knock at .如: Knock on her head 等。

　　Knock on：敲（门、窗等）　　例句与用法：　　1. He accidentally knocked on (the pass from Jones). 他非故意犯规， 用手向前击了（从琼斯传来的）球。　　2. Jim sat up when he heard the knock on his bedroom door. 吉姆听到敲寝室门的声音时便坐了起来。　　3. Please do not enter before knocking on the door. 进来前请先敲门。　　Knock at： 敲　　例句与用法：　　1. There was a furious knock at the door. 有人在猛烈地敲门。　　2. Did I hear a knock at the door? 是有人敲门吗?　　3. Did you hear the knocks at the door? 你听到敲门声了吗？　　这两次词的区别不是很大，有时可以通用，但是一般表示敲在人身上的某个部位习惯用knock on 而不是knock at 。如：Knock on her head 等。

“Knock on: 敲（门、窗等） 例句与用法: 1. He accidentally knocked on (the pass from Jones). 他非故意犯规, 用手向前击了（从琼斯传来的）球. 2. Jim sat up when he heard the knock on his bedroom door. 吉姆听到敲寝室门的声音时便坐了起来。 3. Please do not enter before knocking on the door. 进来前请先敲门。 Knock at: vt. 敲 例句与用法: 1. There was a furious knock at the door. 有人在猛烈地敲门。 2. Did I hear a knock at the door? 是有人敲门吗? 3. Did you hear the knocks at the door? 你听到敲门声了吗这两次词的区别不是很大，有时可以通用，但是一般表示敲在人身上的某个部位习惯用knock on 而不是knock at .如: Knock on her head 等。”

做敲字用时没什么区别

Knock on: 敲（门、窗等）例句与用法: 1. He accidentally knocked on (the pass from Jones). 他非故意犯规, 用手向前击了（从琼斯传来的）球. 2. Jim sat up when he heard the knock on his bedroom door. 吉姆听到敲寝室门的声音时便坐了起来。 3. Please do not enter before knocking on the door. 进来前请先敲门。 Knock at: vt. 敲例句与用法: 1. There was a furious knock at the door. 有人在猛烈地敲门。 2. Did I hear a knock at the door? 是有人敲门吗? 3. Did you hear the knocks at the door? 你听到敲门声了吗？前者表示一种正常情况下的敲门,后者则表示非正常情况下的敲门如小孩子喜欢用背去敲门.而常人则抬手齐耳处敲门. knock on有一种持续性，常有引申意义（如击打某人的内心），knock at强调的是对象，敲门、窗之类的用后者比较好

knock on一般就是knock on the door，但是有时候也用at，这是新东方的解释，你看下，帮助理解。Knock on: 敲（门、窗等） 例句与用法: 1. He accidentally knocked on (the pass from Jones). 他非故意犯规, 用手向前击了（从琼斯传来的）球. 2. Jim sat up when he heard the knock on his bedroom door. 吉姆听到敲寝室门的声音时便坐了起来。 3. Please do not enter before knocking on the door. 进来前请先敲门。 Knock at: vt. 敲 例句与用法: 1. There was a furious knock at the door. 有人在猛烈地敲门。 2. Did I hear a knock at the door? 是有人敲门吗? 3. Did you hear the knocks at the door? 你听到敲门声了吗这两次词的区别不是很大，有时可以通用，但是一般表示敲在人身上的某个部位习惯用knock on 而不是knock at .如: Knock on her head 等。

KNOCK

这个题应该是选C的,首先后面一空,一阵敲门声,用a来修饰是没有问题的,前面一个空应该是当你在听音乐的时候,没有特指的需要,所以用a来修饰.答案应该就是选C.

knock on wood 敲木头，企求好运；吉人天相双语例句 1.Rita: Knock on wood. That looks pretty dangerous. 莉达: 敲敲木头，这看来蛮危险。2.Cross your fingers, knock on wood: it"s possible, though by no means certain, that the worst of the financial crisis is over. 叉上手指，敲敲木头，祈祷一下：如果可能的话（尽管我们无法确定），让这次金融危机最难过的部分就此结束吧。

knock-on effect连锁反应例句:1.Sustained high oil prices do have another knock-on effect falling demand in the west. 持续高企的油价确实还有一个连锁效应：西方需求下降。2.Real estate investment accounts directly for about 13 per cent of china"s gdp and a fifth of its fixed-asset investment, with an enormous knock-on effect for other industries. 房地产投资在中国gdp中占有大约13%的直接比重，在固定资产投资中占有五分之一的比重，对其它行业具有巨大的连锁影响。

？？？？？

knock on 撞击撞出；敲击（门、窗） knock at 敲（门、窗等） knock off 击倒；停工；中断 knock down 击倒；拆卸 knock at the door 敲门；把……撞倒；撞墙 knock out 敲空；击倒；打破；使筋疲力竭 knock it off 停止做；住口，别再讲下去了 knock on the door 敲门 knock over 打翻；撞倒 knock in （把钉子）钉入 knock on wood 敲木头，企求好运；吉人天相 knock up 敲门唤醒；[英口]筋疲力尽；往上敲

Knock on wood 按字面的意思就是“敲敲木头”, 这个短语是指接触木制的东西可以确保好运、甩掉坏运气。这是一个典型的英语惯用语。例如：I have never been without a job, touch wood!这个短语的起源和宗教信仰或迷信有些关联。它很可能起源于古代人的一种信念，即碰一碰树木可以驱邪或可以找到保护神，当时人们认为保护神是住在树里面的，特别是橡树。也有的人认为knock on wood 起源于基督徒发誓或祈祷好运时触摸一个木制十字架的仪式。早期的基督徒认为他们所触摸的正是耶稣殉难的那个十字架。到了后来他们认为只要触摸任何木制十字架或是十字架的一部分，其意义都和触摸耶稣殉难十字架是一样的。在英国有一个短语意思和knock on wood 一样，这个短语是touch wood 。它最早见于1908年的《威斯敏斯特公报》上。它有可能起源于19世纪英国一种叫做"touch-wood"的游戏。依照游戏规则，触摸到木头的人就可以不被捉到。Knock on wood 在挪威有一个变体，即knock on the table 。既然在室内很难找到木头，找一件包含木制材料的家具代替木头也就顺理成章了。

敲击上帝的门

knock at the door; knock敲门 knock down; knock over撞倒 knock [nu0254k] n. 敲，敲打，敲门v. 敲击，互撞，攻击例句:Knock it off, kids, I"m trying to sleep!孩子们，别闹了，我要睡觉了！She knocked the bottom out of our argument.她把我们的论点驳得体无完肤。I often feel that politicians should have their heads knocked together, like naughty children.我时常觉得应该像教训淘气孩子那样让政治家停止争吵。

同义词组用法一样

knock on 1. (非正式)变老 ； 2. (英橄)（犯规动作）以手或臂向前击球 。3. 撞击撞出；4敲击（门、窗）.knock at敲,击,叩 knock off 1. 停止工作 Knocked off work at noon.中午暂停工作 ； 2. 【非正式用语】 仓促写出，即席作成：仓促或轻易地完成、做完或处理；结束 ； 3. 【非正式用语】 除掉；消除 ； 4. 【俚语】 杀，战胜； 5. 【俚语】 持枪抢劫，拦路抢劫 Knocked off a bank.抢劫银行；6. 【非正式用语】 翻印，复印或模仿，尤指在未经允许的情况下 。knock over1. 弄翻, 打倒2. [美俚]袭击; 搜查;3. 逮捕 ;4.使心烦意乱, 使不知所措; 5完成, 干完 ;6[美俚]抢劫。knock down 1. 击倒在地，用一击打倒在地；使倒下； 2. 拆卸，为了储藏或运输而拆卸成几部份； 3. 敲槌宣布卖出，在拍卖会上宣布货物卖出； 4. 【非正式用语】 削减价格等 ；5. 【俚语】 收到（工资）。望采纳哈。

两个词差别太大了 knock off 不及物词组，下班 及物词组 撞倒 撞落，（强调把什么东西撞倒了，撞掉了） knock on 及物词组，敲击 敲打（敲门、窗等）

knock on 撞击撞出；敲击（门、窗）； knock at 敲（门、窗等）； knock off 击倒；停工；中断； knock down 击倒；拆卸； knock at the door 敲门；把……撞倒；撞墙； knock out 敲空；击倒；打破；使筋疲力竭； knock it off 停止做；住口,别再讲下去了 扩展资料 　　knock on the door 敲门； 　　knock over 打翻；撞倒； 　　knock in （把钉子）钉入 　　knock on wood 敲木头,企求好运；吉人天相； 　　knock up 敲门唤醒；[英口]筋疲力尽；往上敲； 　　knock back （摇把）反击,（活塞）逆行,（曲轴）反转； 　　knock against 撞击,与…冲突；偶然遇见； 　　knock sensor 爆振传感器；进气流量传感器； 　　knock into 撞上；与…相撞； 　　knock off work 敲落工作；歇工

敲（门、窗等）这个意思是没区别另外knock on还有 使碰撞：I knocked my head on the doorpost.我的头碰到了门柱上。 继续工作：Mother knocked on with the gardening for another hour.妈妈又在园子里干了一个小时。 【橄榄球】以手击球(犯规)：Don"t try to knock the ball on, it"s against the rules.不要用手击球，这是犯规动作。 增加，提高：Inflation has greatly knocked on the prices.通货膨胀极大地提高了物价。

在用于说明某事：用knock on你的句子重点是说事而不是说这个动作时用到。know at重点是在说这个动作。

1.knock on撞击撞出；敲击（门、窗 2.knock into撞上；与…相撞 3.knock on to 无

knock 是敲knock on 是敲门

knock at和knock on的区别：中文含义不同、用法不同。knock at中文翻译为“打”、“捶”、“敲”，作为固定词组，只可用于表示敲门；而knock on意为不停地工作、以敲击通知演员上场、使增加，后面可接名词和动名词。 扩展资料 　　一、knock at的.基本含义及用法介绍 　　knock at作为固定词组，意为打；捶；敲。例句： 　　1、Late that evening, there was a knock at the door. 　　那天深夜，有人敲过门。 　　2、Knock at my window at eight o"clock and I"ll be ready 　　8点钟敲我的窗，我会准备好的。 　　3、I was wakened by a knock at the door. 　　敲门声把我吵醒了。 　　4、I wish you wouldn"t knock at the table again. 　　我希望你不要再敲桌子了。 　　5、He was scarcely awake when he heard the knock at the door. 　　他刚醒来就听见有人敲门。 　　6、Just when she was going to bed, there was a knock at the door. 　　就在她准备睡觉的时候，传来了敲门声。 　　二、knock on的基本含义及用法介绍 　　knock on意为以敲击通知演员上场;不停地工作;〈非正〉（使）增加。例句有： 　　1、He got a nasty knock on the head. 　　他头部遭到重重一击。 　　2、He went up the garden path to knock on the door. 　　他穿过花园小径去敲门。 　　3、While he was half asleep, he seemed to hear a knock on the door. 　　蒙胧中他仿佛听到有人敲门。 　　4、She got a nasty knock on the head when she fell. 　　她跌倒时头部受到严重碰撞。 　　5、Someone will knock on your door at midnight tonight. 　　今晚午夜时分会有人敲你的门。 　　6、They knock around on weekends in grubby sweaters and pants 　　他们周末穿着邋遢的毛衫和裤子到处闲逛。

Knock on:敲（门、窗等）例句与用法:1.He accidentally knocked on (the pass from Jones).他非故意犯规,用手向前击了（从琼斯传来的）球.2.Jim sat up when he heard the knock on his bedroom door.吉姆听到敲寝室门的声音时便坐了起来.3.Please do not enter before knocking on the door.进来前请先敲门.Knock at:vt.敲例句与用法:1.There was a furious knock at the door.有人在猛烈地敲门.2.Did I hear a knock at the door?是有人敲门吗?3.Did you hear the knocks at the door?你听到敲门声了吗?没什么大区别

敲（门、窗等）这个意思是没区别 另外knock on还有 使碰撞：I knocked my head on the doorpost.我的头碰到了门柱上。 继续工作：Mother knocked on with the gardening for another hour.妈妈又在园子里干了一个小时。 【橄榄球】以手击球(犯规)：Don"t try to knock the ball on, it"s against the rules. 不要用手击球，这是犯规动作。 增加，提高：Inflation has greatly knocked on the prices.通货膨胀极大地提高了物价。

这个问题我会，虽然本人英语口语不是很好，但是对英语四六级词汇还是很熟悉的~下面给大家从三个方面具体解释一下：【含义】knock at中文翻译为打、捶、敲，作为固定词组，只可用于表示敲门；而knock on意为不停地工作、以敲击通知演员上场、使增加，后面可接名词和动名词。【用法】knock at作为固定词组，意为打；捶；敲。knock on意为以敲击通知演员上场;不停地工作;〈非正〉（使）增加。【例句】knock at1、Late that evening, there was a knock at the door.那天深夜，有人敲过门。2、Knock at my window at eight o"clock and I"ll be ready8点钟敲我的窗，我会准备好的。3、I was wakened by a knock at the door.敲门声把我吵醒了。4、I wish you wouldn"t knock at the table again.我希望你不要再敲桌子了。5、He was scarcely awake when he heard the knock at the door.他刚醒来就听见有人敲门。6、Just when she was going to bed, there was a knock at the door.就在她准备睡觉的时候，传来了敲门声。knock on1、He got a nasty knock on the head.他头部遭到重重一击。2、He went up the garden path to knock on the door.他穿过花园小径去敲门。3、While he was half asleep, he seemed to hear a knock on the door.蒙胧中他仿佛听到有人敲门。4、She got a nasty knock on the head when she fell.她跌倒时头部受到严重碰撞。5、Someone will knock on your door at midnight tonight.今晚午夜时分会有人敲你的门。6、They knock around on weekends in grubby sweaters and pants他们周末穿着邋遢的毛衫和裤子到处闲逛。

knock at the door：敲门knock on the door：（雨点之类的东西）敲打在门上

中文是敲门

knock on 敲(门、窗等);撞knock at 敲(门,窗等)当knock作为名词的时候,介词用at,如a knock at the door 敲门声 动词是介词用on,如knock on the door 敲门Knock on the door before you enter.进屋之前要先敲门。When I fell I got a terrible knock on the head.我摔倒时头撞得很厉害。He got a nasty knock on the head.他头部遭到重重一击。Did I hear a knock at the door?是有人敲门吗?I was wakened by a knock at the door.敲门声把我吵醒了希望对你有帮助，满意请及时采纳，你的采纳是我回答的动力！

含义解释："Knock at"指向某处轻敲一下，通常用于形容声音的位置在门或窗上方。其中，“knock”是动词，意为“敲击”，[nu0252k]."Knock on"也指向某处轻敲一下，但通常用于形容声音是在门或其他物体表面，而不是顶部。其中，“knock”是动词，意为“敲击”，[nu0252k].语法、使用方法不同之处的对比："Knock at"通常用于描述声音在门或窗户上方的情况，强调声音的位置，常常和介词"in"或"on"连用，例如："knock at the door"（敲击门）或"knock at the window"（敲击窗户）。"Knock on"则通常用于描述声音在门或物体表面的情况，强调声音的动作或效果，例如："knock on the table"（敲击桌子）或"knock on the door"（敲门）。具体用法举例：Someone is knocking at the door.（有人在敲门。）She knocked at the window, trying to get my attention.（她敲了一下窗户，试图引起我的注意。）I heard a knock at the door and went to answer it.（我听到敲门声，就去开门了。）He knocked on the door and waited for a response.（他敲了门，等待回应。）She knocked on the table to get everyone"s attention.（她敲了一下桌子，引起了大家的注意。）He was knocking on the wall to test its sturdiness.（他在敲墙来测试它的稳固性。）总的来说，"knock at"和"knock on"的区别在于前者强调声音的位置，通常用于形容声音在门或窗户上方，后者则强调声音的动作或效果，通常用于描述声音在门或其他物体表面。根据具体语境，需要选择合适的词组来描述声音的位置和动作。

都是敲，Knock on 比 Knock at 力度更大

一、指代不同1、knock in：敲门,敲入，撞入。2、knock on：敲打。二、侧重点不同knock on：这个词在戏院发信号让演员上台时用的多。三、引证用法不同knock on：knock的基本意思是用手、拳等硬物“敲打”，指出声地、连续地猛击，引申可指发出敲击或爆裂的声响。还可表示“批评”“数落”“非难”。

前边的 求采纳

Knock on:敲（门、窗等）例句与用法:1.He accidentally knocked on (the pass from Jones).他非故意犯规,用手向前击了（从琼斯传来的）球.2.Jim sat up when he heard the knock on his bedroom door.吉姆听到敲寝室门的声音时便坐了起来.3.Please do not enter before knocking on the door.进来前请先敲门.Knock at:vt.敲例句与用法:1.There was a furious knock at the door.有人在猛烈地敲门.2.Did I hear a knock at the door?是有人敲门吗?3.Did you hear the knocks at the door?你听到敲门声了吗?没什么大区别

knock on一般就是knock on the door，但是有时候也用at，这是新东方的解释，你看下，帮助理解。Knock on: 敲（门、窗等） 例句与用法: 1. He accidentally knocked on (the pass from Jones). 他非故意犯规, 用手向前击了（从琼斯传来的）球. 2. Jim sat up when he heard the knock on his bedroom door. 吉姆听到敲寝室门的声音时便坐了起来。 3. Please do not enter before knocking on the door. 进来前请先敲门。 Knock at: vt. 敲 例句与用法: 1. There was a furious knock at the door. 有人在猛烈地敲门。 2. Did I hear a knock at the door? 是有人敲门吗? 3. Did you hear the knocks at the door? 你听到敲门声了吗这两次词的区别不是很大，有时可以通用，但是一般表示敲在人身上的某个部位习惯用knock on 而不是knock at .如: Knock on her head 等。

Knock off就是停止做某事的意思，后面可以直接接名词。It"s time to knock off.When you knock off work，take the shuttle bus home.

不及物动词 vi. 1.相撞,碰击[(+against)]His legs knocked against the chair. 他的两条腿撞到了椅子。 2.敲,击,打[(+on/at)]He knocked at the door and entered. 他敲了敲门便走进去了。 3.(发动机等由于故障)发爆震声及物动词 vt. 1.敲,击,打[O]The falling bottle knocked him on the head. 跌落的瓶子砸在他的头上。 2.击(撞)成...[O][O8]The blow knocked her senseless. 那一击把她打昏了。 3.【口】批评,贬损The critic knocked her latest novel. 那位批评家贬损她最新的那部小说。 名词 n. [C]1.敲;击,打When I fell I got a terrible knock on the head. 我摔倒时头撞得很厉害。 2.【口】不幸;挫折;艰苦We have to take certain knocks in life. 我们在一生中总得遭受某些挫折。 3.爆震声4.【美】【俚】指摘,挑剔

high是高 quality 质量 binoculars双筒望远镜，合起来的意思就是高质量双筒望远镜。

佳能的做工还是可以的，防尘防水滴，但是泡在水里肯定是不行的！在好的电子产品、在好的防水设计都会随着使用——性能降低，所以劝楼主还是别去尝试了！

teleSc0pe是指大型天文望远镜，另一个指小型双筒的那种，一般不区别。

在17世纪初，荷兰人首先发明了望远镜。望远镜由荷兰人发明出来绝不是 偶然的，因为那时在荷兰磨制玻璃和宝石技术很发达，也就有很多制作眼镜的工 人。 这一天，阳光普照，小鸟在空中唱着歌儿飞来飞去。在荷兰的密特尔堡小镇， 制镜工人利比斯赫为检查磨制出来的透镜质量，用透镜去看教堂顶上的风向标。 当时，他带了一块凸透镜和凹透镜。当他把两块透镜离开一点排成一条线时， 惊讶地看到远处的风向标又大又近。他兴奋不已，立刻想到去制造能看得更远更 清楚的装置。 在1608年秋天，利比斯赫制造出这种装置，后来被称为荷兰式望远镜。 就是把一个凸透镜和一个凹透镜装在一个筒的两端，眼睛看的一端装凹透镜。 12月，他又做出了双筒望远镜。

科比斯赫，他为检查磨制出来的透镜质量，把一块凸透镜和一块凹镜排成一条线，通过透镜看过去.1608年他为自己制作的望远镜申请专利，并遵从当局的要求，造了一个双筒望远镜。

BINOCULARS的英文意思是“双筒望远镜”。不是品牌。20代表望远镜倍数，50代表物镜直径。判断是不是20x50的简单方法，20倍没有倚靠物的话手持基本晃得没法看（手持的极限一般不超过10倍），如果手持对准某个车牌或是电话号码太晃看不清，需要装在架子上才能看估计倍数是达标的。50mm直接测量物镜直径即可。不过看照片应该没有20倍这么大。

binoculars[bu026au02c8nu0252kju0259lu0259z]这个是指小型的双筒望远镜telescope[u02c8telu026asku0259u028ap]这个是指大的单筒望远镜

双筒望远镜

是的它做主语都是用复数形式谓语动词用单数这样说thereisabinoculartelescope这里的binocular是形容词

binocular指双筒望远镜telescope泛指望远镜

telescope指的是单筒望远镜，如Hubble Space Telescope 哈勃天文望远镜。英文解释：n.An arrangement of lenses or mirrors or both that gathers visible light, permitting direct observation or photographic recording of distant objects.binoculars指的是双筒望远镜英文解释：n.An optical device, such as a pair of field glasses or opera glasses, designed for simultaneous use by both eyes and consisting of two small telescopes joined with a single focusing device. Often used in the plural.望远镜是一种利用透镜或反射镜以及其他光学器件观测遥远物体的光学仪器。利用通过透镜的光线折射或光线被凹镜反射使之进入小孔并会聚成像，再经过一个放大目镜而被看到。望远镜的第一个作用是放大远处物体的张角，使人眼能看清角距更小的细节。望远镜第二个作用是把物镜收集到的比瞳孔直径粗得多的光束，送入人眼，使观测者能看到原来看不到的暗弱物体。

binoculars英[bu026au02c8nu0252kju0259lu0259z]美[bu026au02c8nɑ:kju0259lu0259rz].n.双筒望远镜; [光] 双筒镜;

1、binoculars，读音：美/bu026au02c8nɑu02d0kju0259lu0259rz/；英/bu026au02c8nu0252kju0259lu0259z/。 2、释义：n.[光]双筒望远镜；[光]双筒镜，[光]双目镜。 3、例句：Through this pair of binoculars you can see the situation on the mountain opposite.通过这个望远镜可以看到对面山峰上的情况。

binoculars[英][bu026au02c8nu0252kju0259lu0259z][美][bu026au02c8nɑu02d0kju0259lu0259rz]n.双筒望远镜; [光] 双筒镜; 例句:1.My eye sockets were sore from the binoculars. 我的眼眶都被望远镜弄痛了。2.I looked through my binoculars, and saw that it was father! 透过双筒望远镜，我看清楚了，是爸爸！3.His binoculars get a workout. 他经常要用到双目望远镜。4.No one needs a pair of binoculars to see that. 这些东西不用双筒望远镜也能看得到。5.Those binoculars are still rather foggy. 经济学家手中的望远镜目前仍相当模糊。

《I is for Innocent》（Grafton, Sue）电子书网盘下载免费在线阅读链接：https://pan.baidu.com/s/1Fz3dEbtuR1Uf_W0z-C91xA 密码：i9ck书名：I is for Innocent作者：Grafton, Sue出版社：Henry Holt & Co出版年份：1992-5页数：286内容简介：Readers of Sue Grafton"s fiction know she never writes the same book twice, and ""I" Is For Innocent" is no exception. Her most intricately plotted novel to date, it is layered in enough complexity to baffle even the cleverest among us. Lonnie Kingman is in a bind. He"s smack in the middle of assembling a civil suit, and the private investigator who was doing his pretrial legwork has just dropped dead of a heart attack. In a matter of weeks the court"s statute of limitations will put paid to his case. Five years ago David Barney walked when a jury acquitted him of the murder of his rich wife, Isabelle. Now Kingman, acting as attorney for the dead woman"s ex-husband and their child (and sure that the jury made a serious mistake), is trying to divest David Barney of the profits of that murder. But time is running out, and David Barney still swears he"s innocent. Patterned along the lines of a legal case, ""I" Is For Innocent" is seamlessly divided into thirds: one-third of the novel is devoted to the prosecution, one-third to the defense, and a final third to cross-examination and rebuttal. The result is a trial novel without a trial and a crime novel that resists solution right to the end. When Kinsey Millhone agrees to take over Morley Shine"s investigation, she thinks it is a simple matter of tying up the loose ends. Morley might have been careless about his health, but he was an old pro at the business. So it comes as a real shock when she finds his files in disarray, his key informant less than credible, and his witnesses denying ever having spoken with him. It comes as a bigger shock when she finds that every claim David Barney has made checks out. But if Barney didn"t murder his wife, who did? It would seem the list of candidates is a long one. In life, Isabelle Barney had stepped on a lot of toes. In ""I" Is For Innocent," Sue Grafton once again demonstrates her mastery of those telling details that reveal our most intimate and conflicted relationships. As Kinsey comments on the give-and-take by which we humans deal with each other, for better and sometimes for worse, the reader is struck yet again by how acute a social observer Ms. Grafton can be. Frequently funny and sometimes caustic, she is also surprisingly compassionate-- understanding how little in life is purely black and white. Except for murder. Somewhere out there, a killer waits to see just what Kinsey will find out. Somewhere out there, someone"s been getting away with murder, and this time it just might turn out to be Kinsey"s. ""I" Is For Innocent" is Sue Grafton in peak form. Fast-paced. Funny. And very, very devious.

knockknocktrickortreat儿歌里海盗说什么敲敲门，不给糖就捣乱！你是谁呀？我是海盗。我是一个小海盗。敲敲门，不给糖就捣乱！你是谁呀？我是海盗。我是一个小海盗。Knock knock, trick or treat?Happy Halloween. Happy Halloween.Knock knock, trick or treat?Happy Halloween. Happy Halloween.

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That Will Be The Return To Yourself 回归自我 The Return To Innocence 曲中台湾阿美族艺术家郭英南老先生贯穿全曲哼唱的《老人饮酒歌》是如此具有

winocc.cpp的源码是mfc自带的，电脑里面可以找到，不知道是不是版本不一样，我的代码在345行是一个括号，你的错误应该是assert语句通不过，在345附近有这样的代码ASSERT(::IsWindow(m_hWnd) || (m_pCtrlSite != NULL));你需要检查你是不是调用了345行附近的两个函数，然后根据assert语句看你自己的代码中是不是不符合要求。

我也出现相同的情况,但是在另外一台电脑上面 按装了 同一环境,没有报错. 所以很奇怪.