- 释义：
- vt.&vi. 使塌陷；倒塌
- 构词：
- cav洞+e→n.洞,穴
- 例句：
-
There is only a pinpoint of light in the cave.
山洞中只能见到一丝光线.
换一句
-
The roof of the cave dropped in on the miners, trapping them.
洞穴的顶部坍了下来, 砸在矿工身上.
换一句
-
A mouse ran out from the dark orifice of the cave.
一只老鼠从黑暗的洞口跑出.
换一句