rock debris

• 岩屑

rock debris的用法和样例：

例句

1. The experts did a painstaking sifting of debris.
   专家们对岩屑进行了煞费苦心的研究。
2. The surface is the relatively thin covering of soil and unconsolidated rock waste.
   浮土是由土壤和未固结岩屑组成的比较薄的覆盖层。