名词
中文翻译：清洁度
同义词：
['cleanliness', 'cleanliness', 'purity']
例句：
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1. The new air filter significantly improvesthe room's cleanness.
新的空气过滤器显著提高了房间的清洁度。
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2. Thecompany insists on high cleanness standardsfor its products.
该公司坚持其产品具有高标准的清洁度。
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3. The cleanness ofthe environment is crucial for human survival.
环境的清洁度对人类生存至关重要。