cleanadj.干净的;纯洁的;完全的;空白的;正当的;精准的adv.完全地n.清洁v.打扫;清扫;擦,刷
cleanlilyadv.清爽;干净
clean off扫除
clean gas纯净气体,净煤气
clean cutadj.确切的(轮廓鲜明的;好看的)
cleannessn.清洁;洁白
clean ore洗矿
cleanskinn.未烙印的牛和马
Cleanroom//`klin ru:m//,净化室
clean fud清洁燃料
clean fish亲鱼