downern.镇定剂;令人沮丧的人或事
downadv.向下prep.沿着 ... 而下adj.向下的;消沉的;无礼的n.绒毛;汗毛v.击倒;打败;吞下;被抑制
down cushion羽绒靠垫
down-tonern.下位修饰
down-cyclen.下降的周期
Down disease唐氏病
downfaultingn.下落断层
down current下降气流
downsampling向下采样
down mittens羽绒手套
down clothes羽绒服
down feathern.绒羽