subsoil

漢語翻譯

n. 下層土, 底土
vt. 掘起...的底土
【法】 底土, 下層土

詞型變化：

名詞:subsoiler 動詞過去式:subsoiled 過去分詞:subsoiled 現在分詞:subsoiling 第三人稱單數:subsoils 

英文解釋：

名詞 subsoil:

1. the layer of soil between the topsoil and bedrock
   同義詞：undersoil

例句：

1. A specific layer of soil or subsoil in a vertical cross section of land.
   地層，岩層處於土地的垂直橫截面中的某一具體土層或次土層
2. Permanently frozen subsoil, occurring throughout the Polar Regions and locally in perennially frigid areas.
   永凍土永久冰凍的下層土壤，出現在整個北極地區和部分長期寒冷的地區