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topsoil

/'tɒpsɒil/

托福英语词汇

📖 中文释义

  1. n. 上层土, 表层土

🧩 词形变化

复数 topsoils过去分词 topsoiled

💬 双语例句

  1. Inappropriate agricultural practices are also to blame: the liberal use of synthetic fertilizer, for example, decimates organisms inhabiting the soil and changes its structure. It takes millennia for fertile topsoil to form; in many places, a cloudburst is now all it takes to wash it away.

    但侵蚀和污染正在给土壤造成严重压力。 从全球看,每年要损失240亿吨肥沃土壤,部分是拜城市和基础设施增长所赐。 光是在德国,建筑工程平均每天就要消耗75英亩土壤。 不恰当的农业行为也是侵蚀和污染的来源:比如,大量使用合成肥料大量杀害存在于土壤中的生物,改变土壤的结构。 肥沃表层土的形成需要几千年,但在许多清下中,只要一场大暴雨就能把它们冲刷干净。

🔗 常用搭配

fertile topsoilfor fertile topsoiltopsoil to form
📘 English Definition(英文释义)
  1. n. the layer of soil on the surface