karst cave

例句：

1. 1. The karst caves are a popular destination for tourists.
   喀斯特洞穴是游客的热门目的地。
2. 2.The karst caves were formed by the erosion of limestone over millions of years.
   喀斯特洞穴是由数百万年的石灰岩侵蚀形成的。
3. 3. The karst caves are home to a diverse range of plant and animal life.
   喀斯特洞穴是各种植物和动物的家园。