cave in

名词 cave in:

1. the sudden collapse of something into a hollow beneath it
   同义词：subsidence

动词 cave in:

1. break down, literally or metaphorically
   同义词：collapse, fall in, give, give way, break, founder

1. The roof is dangerous and could cave in at any time.
   屋顶很危险，任何时候都会坍塌。
2. All opposition to the plan has caved in.
   这个计划的反对派全部屈服了。
3. Mr.President, George Bush, has been receiving advice on all fronts, it seems, to raise taxes. I wondered if you think he can hold the line and not raise taxes for a full four years. And if he should cave in and raise them, would you be deeply disappointed in him?
   总统先生，乔治·布什，似乎正接到各方面的建议去增税。不知你是否认为他能守住阵脚，整整四年不增税。万一他［向压力］低头而增税，你对他是否会大失所望？
4. In the face of enough witness, the criminal caved in.
   在足够的证据面前，这个罪犯屈服了。