突岩

例句：

1. 1. The mountain is covered with a layer of smooth rocks.
   这座山覆盖着一层光滑的岩石。
2. 2. The geologist found a large outcropping rock in the area.
   地质学家在该地区发现了一块巨大的岩石露头。
3. 3. The rock formations are fascinating to explore.
   这些岩石构造令人着迷，值得探索。