移走瓦砾或者阻碍物的时候要当心(特别是在空隙中)，以免发生进一步的坍塌。

Be careful how you remove debris and obstacles, especially from voids, to prevent further collapse.

youdao

移走瓦砾或者阻碍物的时候要当心(特别是在空隙中)，以免发生进一步的坍塌。

Be careful how you remove debris and obstacles, especially from voids, to prevent further collapse.

youdao