cacoethic

例句：

1. 1. The construction site is covered in a thick layer of limestone.
   施工现场覆盖着一层厚厚的石灰石。
2. 2. The chalk cliffs are a popular tourist attraction.
   粉笔悬崖是一个受欢迎的旅游景点。
3. 3. The limestone formations have been formed over millions of years.
   石灰石形成于数百万年。