岩穴

例句：

1. 1. The explorers found a rock cave that led to the hidden treasure.
   探险者们发现了一个通往隐藏宝藏的岩石洞穴。
2. 2. The cave was too narrow for me to fit through.
   这个洞穴太窄了，我无法通过。
3. 3. The miners used the rock cave as a shelter from the storm.
   矿工们利用岩石洞穴作为暴风雨中的避难所。