Subsoil

['sʌbsɒɪl] or ['sʌb'sɔɪl]

解释:

(noun.) the layer of soil between the topsoil and bedrock.

编辑:普鲁登斯--From WordNet

解释:

(n.) The bed, or stratum, of earth which lies immediately beneath the surface soil.

(v. t.) To turn up the subsoil of.

克雷格编辑

解释:

n. the under soil: the bed or stratum of earth which lies immediately beneath the surface soil.—v.t. to turn up the subsoil of.—n. Sub′soiler.

手打:莉莎