单词	subsoil
释义	sub·soil (sŭbsoil′) n. The layer or bed of earth beneath the topsoil. tr.v. sub·soiled, sub·soil·ing, sub·soils To plow or turn up the subsoil of. subsoil′er n.
随便看	bor- Bor. bor- bora Bora Bora boracic boracic borage Borah Peak borane borate borated borax Borazon borborygmus Bordeaux Bordeaux Bordeaux mixture bordello Borden Borden Borden border border collie bordereau

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