abri

例句：

1. 1. The cave is filled with stalactites and stalagmites.
   这个洞穴里充满了石笋和石柱。
2. 2. The explorers found a large cavern in the mountain.
   探险者们在山上发现了一个大洞穴。
3. 3. The cave was dark and damp, making it difficult to navigate.
   这个洞穴又黑又湿，使得导航变得困难。