短语词组短语arable meadow soil 耕作草甸地arable brown soil 耕地棕壤arable black soil 农田黑土arable land soil 灌溉old arable soil 熟地irrigation arable soil 灌耕土arable soil nutrients 耕层土壤养分Arable soil polluted by Arsenic As 污染农田土壤 返回 arable soil