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