形容词
中文翻译：干净的
同义词：
['pure', 'tidy', 'spotless', 'spick-and-span']
例句：
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1. The room was very clean after the cleaning crew had finished.
清洁工完成之后，房间非常干净。
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2. She always tries to keep her house clean and tidy.
她总是努力保持她的家干净整洁。
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3. The floor is spotless, no dirt or dust left.
地板一尘不染，没有一点儿污垢和灰尘。