subsoilWiktionary 原文/ˈsʌbsɔɪl/n.下层土，底土vt.掘起...的底土中文释义来自 ECDICT构词拆解subsub-前缀soilsoil词干sub-Under, beneath. · Subsidiary, secondary.词源说明From sub- + soil.释义名词noun1The layer of earth that is below the topsoil.动词verb1transitiveTo turn up the subsoil of.同族词派生词 1subsoiler