1.tough time困难时期 hard times艰苦时期

Examples: Go through a tough time.度过一段困难时光。 The scheme is designed to help children whose parents have fallen on hard times. 该计划的目的是帮助那些孩子们,因为他们的父母都陷入了困境。

I know we are going through a tought time right now. 我知道我们目前正在经历艰难的时刻。

2.关于mood的固定搭配 in a good mood表示心情好 in a bad mood 表示心情不好 be in the mood表示有意做什么事或者是想要

Examples: You choose to be in a good moon or a bad mood. 你可以选择有个好心情或者是坏心情。

I am not really in the mood for shopping. 我不太想去购物。

3.million dollar question事关重大的问题或者是难题

Example: The million dollar question is can we repeat last year's success. 关键的问题是我们能够再创去年那样辉煌的成绩吗。

4.the more the more 或 the more the less 越怎么 越什么

Examples: The more she learns the more she wants to learn. 她越学越想学。

The more he insisted he was innocent the less they seemed to believe him. 他越是坚持自己是无辜的,他们似乎就越不相信他。

5.take action=do something采取行动

Example: We must take action to deal with the problem before it spreads to other areas. 在这一问题蔓延到其他地区之前，我们一定要采取行动将其解决。

6.sound sound一般做名词，有时做动词 常见的固定搭配有 sound good or听起来不错 sound interesting听上去很有意思 sound strange似乎很奇怪

Examples: Your job sounds really interesting. 你的工作听起来真有趣。 I know it sounds silly but I'll miss him when he is gone. 我知道这听起来很傻，但是他走了后我会想他的。

7.lie in something（to exist or be found in something） 存在于 Example: His skill lies in his abilities to communicate quite complicate ideas very simply. 他的高明之处在于他能将复杂的思想用非常简单的方式表达出来。