2. 条件句也是使句子紧凑的一种表达方式。这里我们介绍一下in which在条件句中的用法，它相当于条件句的引导词if，这时可译作“如果．．．那么．．．”或“当．．．时”。
例句：An ensemble that performs B in which the other performs A is excused from the rehearsal after that concert.
当另外一个乐团演奏A（乐曲）时，那麽演奏B（乐曲）的乐团就有充分的理由不去彩排了。
英语作文作文地带摘要：A recent investigation shows that about 80 percent of pupils have private tutors....
摘要：Hopefully these essays include the topic in the writing part of the test, but the possibi...
摘要：社会在追逐潮流，学校里也已蔚然成风。大家会蜂拥而起模仿领军人物的所作所为，以为那就叫“个...
摘要：考研英语作文范文--人口问题 Directions: A. Study the following graphs carefully and write ...
作文地带导读：2012年考研英语作文精选背诵 The theory of plate tectonics describes the motions of...