cave in

US /keɪv ɪn/
UK /keɪv ɪn/
"cave in" picture
1.

坍塌, 塌陷

to collapse or fall inward

:
The roof of the old mine shaft began to cave in.
旧矿井的顶部开始坍塌
After the earthquake, several buildings caved in.
地震后,几座建筑物倒塌了
2.

屈服, 让步

to yield or surrender to pressure or demands

:
Despite initial resistance, the government eventually caved in to public pressure.
尽管最初有所抵抗,政府最终还是屈服于公众压力。
He refused to cave in to their demands.
他拒绝屈服于他们的要求。