clastic rock

例句：

1. 1. The cliff ismade of clastic rock.
   悬崖是由碎屑岩构成的。
2. 2. The river flows througha region with many clastic rocks.
   河流流经一个有许多碎屑岩的地区。
3. 3.The geologist studied the clastic rocksin the area.
   地质学家研究了该地区的碎屑岩。