文档介绍：
9. in return 作为回报/报答/交换
in turn 依次地，轮番的;转而，反过来
10. a troop of 一群He is surrounded by a troop of friends. 他被一群挚友围住了。
11. become part of… 变成……的一部分
It is part of the way we 。
12. serve as作为，用作，充当，起作用
The room can serve as a study. 这间房子可作书房用。
13. a small reception hall for important visitors 接待重要来宾的小型会客室。
14. Later，Catherine II had the Amber Room moved to a palace outsideSt Petersburg where she spent her summers. 后来，叶卡捷琳娜二世派人把琥珀屋搬到圣彼得堡郊外她避暑的宫殿中。
have sth done 请/让别人做某事，使得，蒙受某种损失
We had the machine 。
15. In 1770 the room was completed the way shewanted. 1770年，这间琥珀屋根据她的要求完成了。 ( I was never allowed to do things the way /that/ in whichI wanted. 我从来不允许根据自己的想法去做事情。)
16. Sadly, although the Amber Roomwas considered one of the wonders of the world, it is missing. 可悲的是，尽管琥珀屋被认为是世界上的一大奇迹之一，可是现在它却消逝了。
I am considering going abroad. 我正在考虑出国。
I consider it a great 。
We consider that the driver is not to blame. 我们认为这不是司机的过错。
We consider it (to be ) true.=(We consider that it istrue.) 我们认为这是真实的。
a couple of words missing 缺的两三个字
There is a page missing. 缺少一页。
Police are combing the woods for the .
17. be at war 处于斗争状态,交战
18. remove some furture and small art objects 把一些家具和小件艺术品搬走
He removed the mud from his shoes. 他去掉鞋上的泥。
This old table is a valuable piece of furniture. 这张旧桌子是一件很宝贵的家具。
19. in less than two days 在不到两天的时间里
20. There is no dou