词汇	成紫色的
释义	成紫色的医purpurescent
随便看	labor-saving machinery labor -saving machinery laborsaving labor saving labor-saving labor-saving appliances labor saving device labor-saving device laborsaving devices like washing machines labor-saving equipment labor-saving input labor-saving investment labor-saving machinery industry labor-saving principle Labor-saving Principle labor-saving ratio labor-saving rearing labor-saving technical progress labor-saving techniques labor-saving technological development labor-saving technology Laborsaving valve labor scale labor science Labor,Second Stage