Cannabis has been used for medicinal purposes since antiquity.大麻自远古以来就被作为药用。The pavilions beside the lake have an air of great antiquity.湖边的亭阁被修葺得古色古香.The origins of this ancient structure are lost in antiquity.这座古建筑的由来已...
This herbicide degrades in moist soil.这种除草剂在潮湿的土壤中分解.He attributed this to a dilution effect of the herbicide.他把这归因于除草剂的稀释效应.Persistence of the herbicide in the mud was irrespective of formulation.除草剂在底泥中的持久性与剂型无关....