1. This is an extremely difficult task.
    这是一项极其困难的任务。

2. I am extremely sorry.
    我非常抱歉。

3. We got on extremely well.
    我们相处得极好。

4. I''m extremely sorry.
    我非常抱歉。

A：Excuse me. Can you tell me how to find some books on social science?
      请问，能告诉我怎样查找社会科学书籍吗？

B：Sure. You see all these little drawers here and all the way around the walls?
      当然。你看到靠墙排列的这一个个小抽屉了吗？

A：Yes.
      看见了。

B：These drawers contain cards describing every book in our library. Together they constitute the library’s “card catalog”.You can see that each drawer runs from one part of the alphabet to another. For example, this drawer goes from SCA to SCM.
      这些抽屉里装着这本图书馆所有图书的卡片，它们构成了图书馆的“卡片目录”。你可以看出每只抽屉都是从字母表中的一部分排到另一部分。比如说这只抽屉，就是从SCA 排到SCM。

A：So if I’m looking for a look called A History of Western Society, I’d just look under “A”.
      这么说，如果我要找一本《西方社会史》的话，就在“A”的分类下找。

B：No. You’d look under “W”. The articles “a” and “the” don’t count in our alphabetization, and card are generally omitted for extremely common words and phrases such as “history of”, “introduction to”, “story of” and so forth.
      不。应该“W”下找。冠词“a”和“the”不包括在字母排列中。一般来说，目录卡片往往省略一些特别常用的词和词组。如“history of”，“introduction to”，“story of”等等。

A：What if I don’t know the title of the book?
      如果不知道书名怎么办？

B：When you can look under the author’s name.
      那你可以在作者名下找。

A：Could you give me an example?
      能举个例子吗？

B：Suppose you want to find a book by your professor, William Smith. You’d look under SMITH and then WILLIAM. Since that’s a very common name, you may have to go through several “William Smith” until you come to the one who wrote book on the subject you’re interested in.
      假如你要找一本你的导师威廉?史密斯教授写的书，你可以在SMITH 栏下寻找，由于William Smith 是一个很常见的姓名，你可能得查阅很多William Smith 才能找到你所感兴趣的书的那位William Smith。

1. 不亦乐乎：不义之财filthy lucre filthy pelf the mammon of unrighteousness | 不亦乐乎extremely | 不远千里go to the trouble of travelling a long distance

1. （用于形容词和副词前）非常，极其
    You use extremely in front of adjectives and adverbs to emphasize that the specified quality is present to a very great degree.

    e.g. My mobile phone is extremely useful...
           我的手机非常有用。
    e.g. These headaches are extremely common...
           这类头痛非常常见。

1. to an extreme degree

    e.g. extremely cold
           extremely unpleasant

    Synonym: exceedinglysuperpassing

2. to a high degree or extent
    favorably or with much respect

    e.g. highly successful
           He spoke highly of her
           does not think highly of his writing
           extremely interesting

    Synonym: highly