重点讲解：
1. in case
以备；以防；免得；
eg. Note down her telephone number in case you forget.
把她的电话号码记下来，以防忘记。
eg. In case I forget, please remind me about it.
我要忘了就请提醒我一下。
eg. Keep the window closed in case it rains.
把窗户关好，以防下雨。
2. strike out
出局；失败；不成功；
eg. It will ruin nations and in their ruin they will strike out.
这将令国家毁灭，在毁灭的过程中，它们将会出局。
eg. The lawyer admitted that he was the firm's second lawyer. The first one had struck out completely.
该律师承认其为该公司的第二任律师。第一任已经干砸了。
eg. I think you have to try. You won't strike out every time.
我想你最好还是试一试，你不会每次都失败的。