短語詞組短語clean sth off 把…擦掉Clean cut off rubbish 保持清潔Soft Clean Rinse Off Cleanser 柔膚水洗式潔麪clean chalk off the blackboard 擦去粉筆clean off a blackboard 把黑板擦乾淨;擦去黑板上的字Clean off the sand 落砂清理clean off the installment 機座clean off obstacle 掃除障礙 返回 clean off