单词 rub (sth) off 释义 rub (sth) off (sth) (cause sth to) be removed from (a surface) by rubbing (将某物)擦掉 Rub the mud off your trousers. 把你裤子上的泥擦掉. Who´s rubbed my figures off the blackboard? 谁把我写在黑板上的数字擦掉了? These stai...