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learn的用法有哪些

2023-07-18 03:10:05
共1条回复
FinCloud

learn的基本意思是学、学习,指通过他人的讲授或从经验中获得知识或技能,表示处于初级阶段或具有技术性的学习活动,强调的是一个由不知道到知道的过程,也可表示学习的成果。

learn的意思

learn是一个英语单词,可以用作动词,可以翻译为学习、学会等等。第三人称单数:learns,过去分词:learnt、learned,现在进行时:learning,过去式:learnt、learned。

learn及物动词的用法

1、学习、学会,其后直接跟宾语,例:He has learnt a new skill.他学会了一项新技能。

2、认识到、得知,其后直接跟宾语,或则后跟that引导的宾语从句,例句:He has learned that dishonesty does not pay.他已经认识到不诚实是没有好报的。

3、接受(教训),固定表达,I leant a lesson.我接受了教训。

learn不及物动词的用法

1、学、学习(+from),Why don"t you learn from my mistakes?你为何不从我的错误中吸取教训呢?

2、得知、获悉(+of/about),We learned of his marriage in the newspapers.我们从报上获悉他结婚了。

learning

learn的常用词组

learna bout/of的用法

1、学到(知识等)、了解,He read a lot so as to learn about the in tell ectual historyof Europe.他大量阅读以便了解欧洲思想史。

2、获悉、听说,I have learned of your promotion from your manager.我已经从你的经理那儿听说你升职了。

learning

短语

learn to say be fore you sing(=learntowalkbeforeyourun),凡事要按步就班,凡事要循序渐进。learn young,learn fair,少时学,学得好。never too old to learn,活到老,学到老。soon learnt,soon forgotten,学得快,忘得快。

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2023-07-17 21:01:341

learn怎么读?

learn英 [lu025c:n] 美 [lu025an] vt.& vi. 学习,学会;习得;得知;记住 vt. 记住;学习;得知;认识到 vi. 学习;获知 学; 学会; 学学; 了解 过去式:learnt learned 过去分词:learnt learned 现在分词:learning 第三人称单数:learns know, learn, comprehend, understand这些动词都含“懂,知道,明了”之意。know: 普通用词,多指通过学习、经验或他人传播而得到知识,含直接知道的意味。learn: 通常指通过他人而获得消息或情况,侧重从不知到知的变化过程。comprehend: 侧重熟悉了解的过程。understand: 指对事物已有彻底的认识,不仅知其性质、含义和细节,而且了解其内外的关系。learn, study这两个动词均含“学习”之意。learn: 常指一般性的学习,尤指初级阶段的学习,表示摹仿实践的过程;着重成果时,作"学会"解。study: 着重指学习过程和高深的或周密的研究,尤指从书本上学习。及物动词 vt. & 不及物动词 vi.1.学习; 学; 学会 It is never too late to learn.活到老学到老。2.得知; 获悉; 听说 They never learn, never give up.他们从不吸取教训, 决不投降。They learned she"s gone.他们得知她走了。及物动词 vt.1.记住;背熟;熟记 H spent three hours learning Lincoln"s Address at Gettysburg by heart.他花了三小时把林肯的《葛底斯堡讲话》背了下来。2.认识到;意识到;(从…)吸取教训 ~ (from sth) 3.获得;养成(习惯、规矩等) He learned honesty from his mother.他从母亲那里学会诚实。learn [lu0259:n]vt.(learned [-t, -d], learnt [-t])学, 学会; 记住听到, 知道, 弄清楚[俚]教, 教训记[背]住learn Chinese学汉语learn (how) to swim学游泳learn a lesson学习功课, 获得教训I learn it from him.我是从他那里听来的。 词性变化learn [lu0259:n]vi.学, 学习, 学会听到, 获悉; 知道, 认识到He learns very quickly.他学得很快。I learned of the accident only yesterday.我昨天才听说这个事故。 继承用法learnable["lu025c:nu0259bl]adj. 习惯用语I am [have] yet to learn. 我还不大清楚。In doing we learn. [谚]边干边学; 在 实践中学习。Never too old to learn. [谚]活到老, 学到老。Soon learnt, soon forgotten. [谚]学得快, 忘得快。We regret to learn that ... (函电等习用语)惊悉...learn off 记牢, 背熟1.Children must learn socially acceptable behaviour. 儿童必须学会社会上认可的行为举止。 2. Older workers can be as adaptable and quick to learn as anyone else. 较年长的工人的适应能力和学习速度有时并不亚于其他任何人。 3. He was astonished to learn he"d won the competition. 他听说他比赛赢了,感到很惊讶。 4. Where did you learn to cook? 你在哪里学的烹调? 5. He needs to learn to curb his temper. 他得学着控制自己的脾气。
2023-07-17 21:02:421

learning可以加s吗

不可以。_earning是不可数的,它是learn的现在分词,表示学习、学问,是不能后加s的。
2023-07-17 21:02:491

learn的现在分词

learning
2023-07-17 21:03:004

good learning habits中的learning语法

动词的现在分词形式有时候可以做形容词使用,比如learning, interesting, boring,这里是指好的学习习惯,做形容词修饰habits,希望我的回答可以帮助到你,谢谢!
2023-07-17 21:03:212

exclusive和special的区别

1)exclusive英 [u026aku02c8sklu:su026av] 美 [u026aku02c8sklusu026av]adj.专用的; 高级的; 排外的; 单独的2)special英 [u02c8speu0283l] 美 [u02c8spu025bu0283u0259l]adj.特殊的; 专门的; 专用的; 重要的
2023-07-17 21:02:132

5K Retina iMac评测

在十月的发布会举办之前,恐怕大多数人都会认为新款iPad才是这场发布会最大的主角。当然,iPad Air 2也确实足够优秀,超薄的机身和性能的升级依然亮点十足。不过,在更新iPad产品线的同时,苹果也发布配备Retina 5K显示屏的27英寸iMac,抢走了不少iPad Air 2的风头。虽然在外观方面5K Retina iMac与上一代iMac并没有很大的区别,但是分辨率高达5120×2880的27英寸显示屏却足够亮眼,而1470万像素的数量整整是1080p全高清屏幕的7倍之多,甚至比时下流行的4K分辨率还要多67%。如今市面上配备4K屏幕的一体机可谓少之又少,而且5K Retina iMac是一台出自苹果的产品,超高的分辨率意味着用Final Cut Pro剪辑视频是不仅能够以全分辨率播放4K视频,与此同时屏幕上还会有剩余空间留给各种操作面板。毫无疑问,在2500美元的价位上,Retina 5K iMac绝对无出其右。当然,在绝对价格上,2499美元还是很贵的,超过了市面上几乎所有的一体机。不过如果如果你对画质有着极高的要求的话,那么Retina 5K iMac将会是你最好而且可能是唯一的选择。外观体验除了屏幕带来的震撼体验之外,在外观方面5K Retina iMac与2012年发布的上一代27英寸iMac并没有太大的区别。5K Retina iMac的屏幕边缘依然只有5mm厚,如果不是从侧面看的话,甚至会忽略屏幕的厚度。5K Retina iMac整体非常纤细简洁,如果想要在桌子上放一台5K Retina iMac的话,你只需要保证桌面上方的空间能够放下一个超大的27英寸显示器,并不用担心5K Retina iMac会占据更多的桌面空间。同样纤薄简洁的铝合金支架固定在屏幕后方,中间有一个开孔用于固定线缆。5K Retina iMac依然采用了铝合金打造机身,坚实稳固的磨砂手感与MacBook一脉相承,尽显高端。在苹果两年前发布超薄造型的iMac时,或许有人会认为更漂亮的外观不会成为消费者更换iMac的理由,但是如今5K Retina屏幕的加持让人完全无法找到不去购买iMac的理由。5K Retina iMac的各种接口依然位于屏幕的背面,并且整齐的排在一起,包括3.5mm标准耳机插孔、SDXC插槽、四个USB 3.0接口、两个Thunderbolt 2接口以及千兆以太网接口。此外,屏幕背面还有电源线插口、Kensington锁孔以及电源按钮。值得注意的是,5K Retina iMac配备了两个扬声器,分别位于屏幕两侧的边缘,给人感觉声音是从屏幕边缘发出的一样。尽管从外观上并不能看到这两个扬声器,但是音效还是很不错的,比较震撼。除了主机之外,5K Retina iMac的配件与老款iMac并没有区别,用户可以选择AppleMouse有线鼠标、Magic Mouse触控无线鼠标或Magic Trackpad,同时还会附送一个无线键盘。显示效果“我就想一直盯着它”,这或许就是5K Retina iMac这块屏幕给人的最直接感受。来自Engadget的Dana Wollman表示拆箱时的感觉就像是当初第一次拆箱HDTV。“在最开始的几分钟我什么也不做,只想来回切换自带壁纸。所有的壁纸都要比原来的更加清晰锐利,我想要知道我到底能从屏幕中看到多少细节”,Dana Wollman如是说。虽然OS X Yosemite扁平化的图标看起来很棒,但是播放一些4K视频或者超高清图片才能真正发挥出这块屏幕的功力。如果你用5K Retina iMac打开一些摄影师拍摄的优秀照片的话,你会注意到照片的每个细节你都能看清,甚至是鸟兽的皮毛,整体感觉就像是透过窗户去看外面的景色一样。当然,光凭分辨率这款屏幕还无法实现如此出色的显示效果。苹果使用了Oxide TFT技术来保证有足够的亮度,与此同时,补偿层的加入也使屏幕具有非常优秀的可视角度。从很偏的角度看去,色彩仍然不会失真。本来就非常优秀的显示素质再加上苹果精心的调校,5K Retina iMac才能拥有让人惊异的屏幕表现。此外,苹果还在5K Retina iMac使用了原先在Retina iPad上的有机钝化技术,能够在降低功耗的同时使画面具有更好的清晰度。苹果表示5K Retina iMac的能耗比老款iMac降低了30%,这也意味着更多的像素负担并不会带来过热问题。值得一提的是,苹果自行设计的Timing Controller处理器保证了所有像素都能够正常工作。但与老款iMac相比,5K Retina iMac并不能作为独立的外接显示器来使用,只能用作一体机,这恐怕也是5K Retina iMac最大的缺点之一。而且苹果目前也并没有推出5K分辨率的Cinema Display,因此如果你想要用一台Mac Pro搭配一台显示器的话,就得选择其它品牌的产品了。性能表现虽然5K分辨率的Retina屏幕才是最大的亮点,不过不要忘了iMac还是一台一体机。售价2499美元的低配版5K Retina iMac配备了3.5GHz酷睿i5四核处理器、8GB内存、1TB Fusion Drive硬盘以及显存为2GB的AMD Radeon R9 M290X显卡。在Geekbench和Xbench等综合跑分测试中,5K Retina iMac的性能表现要比配备3.2GHz酷睿i5四核处理器和英伟达GeForve GT 755M显卡的老款27英寸iMac略有增长。另外,在Cinebench OpenGL测试中,5K Retina iMac的帧数和CPU得分分别为90.54fps和540分,而老款iMac的成绩则为80.18fps和520分。考虑到5K Retina iMac和老款iMac都配备了Fusion Drive混合硬盘,因此硬盘读写速度和启动时间基本相同。5K Retina iMac的平均读取速度、平均写入速度和启动时间分别为659MB/s、311.5MB/s和15s,而老款iMac的成绩则为668MB/s、318.1MB/s和13s,区别并不大。但5K Retina iMac的性能足以应付4K视频吗?在实际测试中,首先在5K Retina iMac中启动Final Cut Pro视频编辑软件并加载大小为10GB的4K视频,然后即便视频在播放中过程中,5K Retina iMac和去年发布的新款Mac Pro一样都拥有足够的性能使视频显示出各种特效,转换过程非常迅速,几乎毫无延迟。甚至在Final Cut Pro中设定程序让视频在出现掉帧时暂停,从头到位也视频完全没有暂停,这意味着帧数也没有下降。在测试中,5K Retina iMac用了4分53秒将这段10GB的4K视频导出为1080p分辨率的版本,而这也是唯一能够清晰听到风扇高速旋转的声音的时候。即使5K Retina iMac和Mac Pro都足以承担高性能任务,但是需要指出的是,Mac Pro即使在这种情况下也完全不会发出声音。尽管5K Retina iMac不是为游戏而生的,但是在以5120×2880原生分辨率和中等画质中等抗锯齿的设置下,运行《蝙蝠侠:阿卡姆之城》最高帧数仍然能够达到26fps,平均帧数也有22fps。而在4096×2304、3200×1800和2560×1440分辨率下,帧数则会分别增加到34fps、52fps和78fps。虽然5K Retina iMac在游戏上的表现并不是极为出色,但是各种游戏在5K Retina iMac还是可玩的。当然,如果你玩游戏时喜欢特效全开的话,那么你也不会花重金买5K Retina iMac了吧。软件系统5K Retina iMac搭载了在发布会上一同正式开始推送的OS X Yosemite操作系统。而如果过你想要充分发挥OS X Yosemite的全部功能的话,最好搭配一台iOS设备来使用。在升级OS X Yosemite之后,用户可以使用Mac来拨打接听电话、自动连接iPhone作为无线热点、即时同步Pages等软件的操作进程或者远程打开或关闭iOS设备上的Safari标签页并浏览iCloud全部搜索历史。总之,OS X Yosemite让Mac与iOS设备更紧密地结合在了一起。不过,除了必备一台iPhone、iPad或iPod touch之外,用户还必须使用苹果自家的应用,例如Safari浏览器和邮件。而如果你是一位Android手机用户,或者经常使用Google Drive或OneDrive等云服务的话,OS X Yosemite的平台整合功能并不奏效。对于大多数消费者来说,更好用的Spotlight搜索、邮件应用的多项新功能以及向iOS靠拢的扁平化设计风格才是OS X Yosemite最具吸引力的改进。总体来说,OS X Yosemite是一个非常出色的操作系统,而且如果你购买一台5K Retina iMac,OS X Yosemite也是你的最佳选择。配置选择5K Retina iMac的起步价为2499美元,主要配置包括3.5GHz英特尔酷睿i5四核处理器、8GB内存、1TB Fusion Drive硬盘以及配备2GB GDDR5显存的AMD Radeon R9 M290X显卡。当然,苹果也和以往一样为用户提供了丰富的硬件升级方案。处理器方面,用户最高可选配4.0GHz英特尔酷睿i7四核处理器,升级费用为250美元。内存方面,16GB和32GB的升级费用分别为200美元和600美元。显卡方面,升级配备4GB VRAM显存的AMD R9 M295X独立显卡的价格也为250美元。最后,储存方面,2499美元的低配版本可以选择256GB固态硬盘或者1TB Fusion Drive硬盘,而升级为3TB Fusion Drive、512GB固态硬盘和1TB固态硬盘的价格分别为150美元、300美元和800美元。市场竞争不论从出色的Retina 5K屏幕还是高昂的售价来看,目前市面上的一体机似乎都不是5K Retina iMac的直接竞争对手。按照苹果在发布会上的说法,5K Retina iMac的竞争对手其实是售价高达几千美金的高端4K显示器。不过这也存在某种程度的误导,因为5K Retina iMac并不支持作为独立的显示器来使用,所以和4K显示器比较价格并没有太大的意义。如果你已经拥有一台性能强大的主机的话,那么5K Retina iMac的高“性价比”与你毫无关系,你还是得乖乖地去买一台4K显示器。当然,目前市面上的4K显示器的价格也有所差别,价格差价很大。夏普32英寸PNK-321显示器的价格高达4795美元,戴尔即将发售的5K显示器的价格为2500美元,华硕31.5英寸PQ321Q显示器的价格为3000美元,这些4K显示器的确很贵。不过,市面上也有一些相对来说便宜很多的选择,比如戴尔28英寸P2815Q和三星28英寸U28D590D的价格都只有600美元,分辨率同样为3840×2160。如果你想要一台配备4K屏幕的一体机的话,5K Retina iMac显然是最接近的选择。不过,配备1920×1080全高清屏幕的21.5英寸iMac和配备2560×1440 QHD屏幕的27英寸iMac也是不错的选择。而在Windows PC阵营,目前还没有出现能够与5K Retina iMac抗衡的产品。戴尔高端一体机XPS 27配备了QHD屏幕,售价为1600美元。此外,华硕一体机ET2702IGTH和联想A730也配备了同样分辨率的屏幕。而惠普最高端的一体机Envy Recline 27一体机仅配备了全高清屏幕,售价1400美元。与以上这些Windows PC一体机相比,虽然5K Retina iMac的售价要贵很多,但是Retina 5K屏幕带来的视觉震撼却无人能及。总结5K Retina iMac目前已经在苹果官方网上商店正式开卖,而考虑到出色的Retina 5K屏幕,2499美元的价格其实很值得。当然,两倍于竞争对手的价格也意味着5K Retina iMac并不适合所有的消费者。如果只是用电脑来上网刷微博的话,起步价1099美元的老款iMac足以满足你的需求,不过如果你对视频或者照片有着较高追求的话,5K Retina iMac一定会让你心动不已。而且对于没有必要或者没有足够资金购买售价高达2999美元而且没有显示器的Mac Pro专业主机的消费者来说,能够流畅编辑4K视频而且配备Retina 5K显示器的新款iMac简直很难让人拒绝,而且更重要的是,起步价仅为2499美元。当然,如果你已经有一台Mac Pro却对5K显示屏的震撼效果趋之若鹜的话,只能期待苹果快点推出5K Cinema Display显示器了。王者之心2点击试玩
2023-07-17 21:02:181

desert center造句 desert centerの例文 "desert center"是什麼意思

Prior to that elementary students were bussed to the Desert Center School. Local school children are part of the Desert Center Unified School District. The route cuts across the Little San Bernardino Mountains along southern Desert Center . Desert Center AAF was first known as the Desert Center Airdrome. Desert Center AAF was first known as the Desert Center Airdrome. The 1980s saw a surge of growth in Desert Center as jojoba gained popularity. Desert Center Airport has a runway, but last operated as a pubpc airport in 1992. Desert Center AAF was officially opened in April 1943. Companies from the 3rd Infantry Division spend about a week conducting exercises at the desert center . In the vicinity of Desert Center are the Chuckwalla Mountains, Corn Springs, Chiriaco Summit and museum. It"s difficult to see desert center in a sentence. 用 desert center 造句挺难的 Some older students continued to attend Desert Center school after the opening of Eagle Mountain Elementary School. Cameron shot the footage over o weeks at a deserted steel mill in Desert Center in neighboring Riverside County. The project was built on over of creosote bush-dominated desert habitat near Desert Center next to Joshua Tree National Park. His sons, Stanley, Thurman, and Herbert, took over operations of Desert Center , and Stanley eventually purchased the town from his father. This mockup can still be seen through the windows of a garage building adjacent to the cafe in Desert Center , CA .) Garfield"s Contractors General Hospital evolved into Kaiser Permanente, the largest managed health care system in the world, but its origins are in Desert Center . These districts vary in size from Desert Center , which serves just over a handful of students, to Corona-Norco, with more than 50, 000 students. It was psted as " Desert Center CAA Site 17 " in the " Aerodromes " table on the 1955 San Diego Sectional Aeronautical Chart. Once air fields were estabpshed at three new locations within the DTC ( Desert Center ), Blythe field was no longer required for the Army"s desert exercises. In 1992 a roadside historical marker at the site was unveiled by Garfield"s sister next to the grocery honoring Desert Center as the birthplace of Kaiser Permanente. According to the 2010 United States Census, Desert Center had a median household ine of $ 27, 031, with 28.8 % of the population pving below the federal poverty pne. We cross the Colorado River on U . S . Highway 95 and take Highway 177 toward Desert Center , Ariz . This is one of the lonepest roads we"ve seen. The remaining students in the school district are children of the few full-time residents of Desert Center and children of the employees of the o nearby Metropoptan Water District pumping plants. On November 20, 1952, Adamski and several friends were in the Colorado Desert near the town of Desert Center , Capfornia, when they purportedly saw a large submarine-shaped object hovering in the sky. But Florence Nelson, director of the Desert Center of Scottsdale and a promoter of the telescope project, said Congress should not allow environmental laws to halt progress in astronomy and economic development. Hearing this, Henry J . Kaiser, whose division of the Six Companies, Inc . was building the stretch of the Colorado River Aqueduct through the Desert Center vicinity, visited Garfield at his cpnic. Despite many changes in the modern world, Desert Center is a true survivor a town that not only refuses to die, it thrives and continues to provide a safe haven for travelers. The first school in the area was Desert Center School, which was originally a red-brick schoolhouse built by Steve Ragsdale in the 1940s along U . S . Route 10 in Desert Center . The first school in the area was Desert Center School, which was originally a red-brick schoolhouse built by Steve Ragsdale in the 1940s along U . S . Route 10 in Desert Center. The desert center operated under the name of Iraqi State Estabpshment for Pesticide Production, but the Iraqis finally admitted to the UN monitors that al-Muthanna produced 4, 000 tons of chemical warfare agent per year. It"s difficult to see desert center in a sentence. 用 desert center 造句挺难的 According to a history of the 1st, 2nd, and 3rd Airdrome Detachments, a detachment of the 475th Base Headquarters & Air Base Squadron was the first administrative unit stationed at Desert Center , arriving on 15 January 1943. Since its aborted rebuilding had left it nothing but a steel shell on railroad wheels, it was sold and is now on display at Ragsdale"s Desert Center Cafe in Desert Center, Capfornia, about south of Eagle Mountain. Since its aborted rebuilding had left it nothing but a steel shell on railroad wheels, it was sold and is now on display at Ragsdale"s Desert Center Cafe in Desert Center , Capfornia, about south of Eagle Mountain. The desert center operated under the name of Iraqi State Estabpshment for Pesticide Production, but the Iraqis finally admitted to the U . N . monitors that al-Muthanna produced 4, 000 tons of chemical warfare agent per year. "Desert Steve " Ragsdale died in 1971 and is buried in the Coachella Valley Pubpc Cemetery, even though he had dug his own grave near Desert Center prior to his 1950 departure and had even placed a memorial plaque near it. Donna Charpied, a critic of the Eagle Mountain plan, gazed at the scarred hillsides of the mine the other day from her jojoba farm near the rustic town of Desert Center and spoke of the potential damage to wildpfe in the park. In January 1941, Henry Kaiser asked Garfield to set up an insurance plan for the Richmond workers ( this was merely contract negotiation with insurance panies ), and a year later Kaiser asked Garfield to duppcate at Richmond what he had done at Desert Center and Mason City. Ragsdale frequently retreated to his writing shack near the north tip of the rock formation called " The Alpgator " ( across I-10 from Desert Center ) where he posed bad poetry the stanzas are referred to as " Spa *** # 1 ", etc . to be distributed in booklet form to travelers.
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