cave in

• • (地面)下陷；坍塌；下沉；垮掉：

    The roof of the working face caved in suddenly, several miners were trapped.

    工作面的顶板突然塌落，数名矿工被困在工作面内。

    It is said that the last firm he worked for caved in recently.

    据说他上次工作的那家公司最近垮台了。

  • 使倒塌；使下沉：

    They caved in the roof of the building with explosives.

    他们用炸药将建筑物的顶部炸掉。

  • [口语] 屈服；投降；被迫让步：

    It was beyond all expectations that he caved in so easily.

    没想到他竟会这么容易地就败下阵来。