短语to nip it in the bud 意思是防患于未然或消灭于萌芽状态。
If he doesn't nip it in the bud, then the problem could soon get much worse.
She thought it was a very dangerous idea and should be nipped in the bud immediately.
另一个短语to nip out for something, 意思是快去快回。
Could you nip out to the shop and get me some milk, please?