topsoil的音标

英 [ˈtɒpsɔɪl]

美 [ˈtɑːpsɔɪl]

topsoil的用法

n. 表土;表土层

topsoil的例句

1.A thin layer of topsoil was swept away. 

薄薄的一层表土被冲走了。

2.This causes environmental damage when the topsoil is washed away by the rains. 

雨水冲走表层土壤会造成环境破坏。

3.The layer of soil between the topsoil and bedrock. 

位于上层土和岩床之间的一层土壤。

4.If the topsoil is taken away by erosion, plants can no longer grow in the soil left behind.

如果因水土流失而冲掉了表土，植物不能再在留下的土壤中生长。

5.The fragile land quickly lost its topsoil and became nothing but sand and dust. 

那单薄的土地很快就失去了表土，成为沙粒和尘埃。

topsoil的词汇搭配

topsoil planting 表土栽植 

topsoil cover 表土保护层

topsoil的近义词

soil 土地 

earth 地球 

loam 壤土 

dirt 污垢 

peat 泥煤 

surface soil (用于农耕的)地面土壤

topsoil的真题例句

1.What about supply? The three environmental trends—the shortage of fresh water, the loss of topsoil and the rising temperatures—are making it increasingly hard to expand the world's grain supply fast enough to keep up with demand.

出自-四级2016年6月阅读原文

2.The three environmental trends—the shortage of fresh water, the loss of topsoil and the rising temperatures—are making it increasingly hard to expand the world's grain supply fast enough to keep up with demand.

2016年6月四级真题（套）阅读 Section B