形容词
中文翻译：一尘不染的
同义词：
['spotless', 'spotless', 'spotless']
例句：
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1.The room was so clean-as-a-whistle that it looked like a new one.
房间如此干净以至于看起来像新的一样。
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2. He made sure the room was clean-as-a-whistle before leaving.
他确保离开前房间是干净的。
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3.After cleaning the house, she felt her clothes were as clean-as-a-whistle.
她觉得衣服洗过后非常干净。