sinkhole Plain

例句：

1. 1. The sinkhole in the ground was filled with water.
   地面的陷井被水填满了。
2. 2.The workers had to dig a sinkhole to access the underground tunnel.
   工人们不得不挖一个陷井来进入地下隧道。
3. 3.The sinkhole is dangerous and should be avoided.
   这个陷井很危险，应该避免。