pitshaft

例句：

1. 1. The miners found a deep pitshaft in the mountain.
   矿工们在山中发现了一个深的洞穴。
2. 2.The cave was filled with strange creatures that had never been seen before.
   这个洞穴里充满了以前从未见过的奇怪生物。
3. 3. The hole in the wall led to a hidden chamber beneath the house.
   墙上的洞通向房子下面的秘密房间。