1.word for word 原封不动地；逐字逐句的

例句：Don' t translate word for word, sentence for sentence.
不要逐字逐句地翻译。

2.think of 想到；考虑到

例句：Think of it in terms of an investment.
从投资的角度来考虑那件事。

3.Life imprisonment 终身监禁

例句：The court doomed him to life imprisonment.
法庭判他终身监禁。

4.the Great Depression 大萧条
例句：He studied the cycle of events leading to the Great Depression.
他研究了导致大萧条的一系列事件。