PETS-2每日必备词汇149

Since the suspensions didn't work, we might have to expel her.
既然休学没有用，我们可能得让她退学。

detention　
(n.) 课后留校

I have to go to detention all week for that stunt.
我因为想引人注意耍了那个花招，所以要课后留校一个星期。

die-hard

死硬派

I don't like these die-hards.
我不喜欢这些顽固的家伙。