topsoil的翻译，读音

例句

A thin layer of topsoil was swept away. 薄薄的一层表土被冲走了。

topsoil excavated from the work site shall be applied onto the gabions. 从工地挖出的表土须用于筑堤的石笼上. 。

topsoil excavated from the work site shall be applied onto the gabions . 从工地挖出的表土须用于筑堤的石笼上。

These things in the topsoil that were once alive are called humus. 表土中这种曾是活体的东西叫做“腐殖质”。

The crusted topsoil is universal phenomenon for slopped lands in the loess plateau. 黄土高原的坡耕地普遍存在着表土结皮现象。