We must keep our hands clean. 此句中的clean用作形容词,意为干净的,清洁的,这是clean的常用法之一。
She is cleaning the blackboard. 此句中的clean用作动词,意为弄干净,清洁,这是clean的常用法之二。
除了以上用法外,clean还有其它用法。如:
① I clean forgot about it. (clean用作副词,意为彻底地,完全地,全部地。)
② The car needs a good clean. (clean用作名词,意为清洁过程,清扫。)
③ The government should come clean about its plans. (come clean意为说出真相,全盘招供。)
④ We clean the machine down at the end of each day. (clean sth down 意为擦洗干净。)
⑤ The waiter hurried to clean up the pieces of the broken plates. (clean up意为清理掉,收拾干净。)
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