dirtn.污垢;泥土;灰尘
dirtied your handsv.有损于(做可耻的事)
dirt-cheap price极便宜的价格
dirt-pocket trap沉泥井
dirtied their handsv.有损于(做可耻的事)
dirtiness resistance污垢热阻
dirt discharge groove排污槽
Dirt breed disease.肮脏易生病。
dirt-removing power去污能力
dirt excluding groove积后槽
dirt-block function阻垢作用