scrub

n.擦洗

screwed-up, screwy, scribble, scribbler, scribbling-block, scribe, scrimmage, scrimp, scrip, script, script-writer, scriptural, scripture, scrofula, scrofulous, scroll, Scrooge, scrotum, scrounge, scrounger, scrubber, scrubbing-brush, scrubby, scrudge, scruff, scruffily, scruffiness, scruffy, scrum, scrum-half, scrummage, scrumptious, scrunch, scruple, scrupulous, scrupulously, scrutable, scrutineer, scrutinize, scrutinize, scrutinise,