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1、clean過去式：cleaned。

2、翻譯：潔凈的; 干凈的; 愛干凈的; 愛整潔的; 無有害物的; 無污染的。

3、例句：It is your responsibility to keep the room clean and tidy .保持房間整潔是你的職責(zé)。

4、I can't find a clean shirt (= one I haven't worn since it was washed) 我找不到一件干凈的襯衫。