derivative rock

• 沉积岩,导生岩

derivative rock的用法和样例：

例句

1. Sedimentary rock is the best place to find fossils.
   沉积岩是找到化石的最佳地方。
2. A rounded massof mineral matter found in sedimentary rock.
   混凝土发现于沉积岩中的圆形矿石块。