Just in case

　　【世博精解】

　　Just in case, means as a precaution,是指以防万一的意思。例如：

　　Took along an umbrella, just in case.

　　随身带一把伞，以防万一。

　　这里，我们来学习一下关于case的习惯用语。

　　in any case, it means regardless of what has occurred or will occur.是指无论如何，总之不管已经或将要发生什么的意思。

　　in case, it means If it happens that; if.是指如果发生；如果的意思。

　　in case of, it means If there should happen to be.是指如果发生的意思。例如：

　　a number to call in case of emergency.

　　万一发生意外打的号码