The Great Wall of China is publicly recognized as one of the

英语翻译
Bids shall be publicly opened and read aloud in the Board Room 226 at that time
Allow thirty minutes for parking and entrance to building
A mandatory pre-bid conference will be held at the school 2:00 PM,June 17,2008 in the Board Room 226.

英语翻译
Since 2005,I've been very publicly concerned about the long-term prospects of Apple's programming language and application framework,Objective-C and Cocoa,going so far as to speculate about a possible technological crisis a few years in the future.
When the future arrived,I revisited the issue of Apple's language and API future in light of Apple's dramatic entrance into the mobile market and the unprecedented growth this has enabled.You can read my conclusions for yourself,but the bottom line is that I'm still concerned about the issue—and think Apple should be too.Success hides problems,and Apple has been so very successful in recent years.
Enter (and exit) garbage collection
Apple has done a tremendous amount of work to modernize its development platform,including completely replacing its compiler,overhauling its IDE,and adding features and new syntax to the Objective-C language itself.
All of these things are great,but none address my specific concerns about memory management.Apple did eventually see fit to add garbage collection to Objective-C,but my fear that Apple wouldn't really commit to garbage collection in Objective-C turned out to be well-founded.Today,years after the introduction of this feature,very few of Apple's own applications use garbage collection.
There's a good reason for this.Runtime garbage collection is simply a poor fit for Objective-C.For all its syntactic simplicity and long,distinguished history,the C programming language is actually a surprisinglycomplex beast,especially when it comes to memory management.In C,any correctly aligned pointer-size bit pattern in memory can potentially be used as an address; the language explicitly allows casting from void *to a typed pointer,and vice versa.Objective-C,as a superset of C,inherits these charming properties.In exchange for this sacrifice,Objective-C code can be compiled alongside plain C code and can link to C libraries with ease.
This means that the runtime garbage collector is expected to traverse memory allocated by an arbitrary conglomeration of Objective-C and plain old C code and make the correct decision—every time—about what memory may safely be collected.Apple's Objective-C garbage collection is a global switch.It can't be enabled just for the clean,object-oriented Objective-C code that application developers write; it applies to the entire process,including all the frameworks that the application links to.

英语翻译
Shopping ——bag ladies don’t beg publicly,but they do not refuse what is offered.Once a shopping ——bag lady appears where you live,it is as hard to pass her by without giving her some money as it is to pay no attention to the collection box（功德箱）in church.And although you may not like it,if she chooses your doorway as her place to sleep in the night,it is as morally hard to turn her away as it is to do with a lost dog.Most shopping ——bag ladies seem to be between the ages of 40 and 65.They wear layers (层) of clothes even in summer time,with newspapers filled between the layers as something against bad weather.No one knows how many shopping ——bag ladies there are in New York..The number is going up.Some persons and researchers spend a great deal of time taking care of or observing shopping ——bag lag ladies and doing what they can to better the life lady hermits (隐士) who’re down.
1.Shopping-bag ladies are _____.
A.lady beggars B.ladies who sell shopping-bags
C.ladies who make shopping-bags D.those who go hungry
2.They fill newspapers between the layers of their clothed because _____.
A.they are so poor B.they have no place to put them
C.they want to hide them D.they have to use them to keep the cold out
3.They fill newspapers between the layers of their clothes because _____.
A.they are so poor B.they have no place to put them
C.they want to hide them D.they have to use them to keep the cold out
4.Which of the following statements is not true
A.There are more and more shopping-bag ladies in the United States.
B.Shopping-bag ladies appears only in New York.
C.Some people are helping shopping-bag ladies.
D.Some people are engaged in their research on these shopping-bag ladies.

这个句子什么意思?
General Growth Properties is a publicly traded Real Estate Investment Trust ("REIT") and is listed on the New York Stock Exchange under ticker symbol GGP.
GGP是个公司名,主要是这里的thicker symbol什么意思?

英语翻译
Declan's talent was publicly acknowledged for the first time when at just 7 years old.Declan used to have help swerve at GSW,a waterpump company.He insisted on performing spontaneously at the annual Rochester Dickens Festival,a two-day extravaganza where people were invited to dress up in?Victorian?costumes to celebrate the life and times of the famous author Charles Dickens?and his links with their town.Galbraith,dressed up as a chimney sweep,started singing and the crowd went wild.