名词
中文翻译：不纯
同义词：
['contamination', 'impurity例句：1. The water was found to be contaminated with chemicals.（水被发现被化学物质污染。）2. The food was found to be impure due to poor handling.（食物因为处理不当而变得不纯。）']
例句：
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1. The water was found to be contaminated with chemicals.
水被发现被化学物质污染。
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2. The food was found to be impure due to poor handling.
食物因为处理不当而变得不纯。
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3. The company's products are known for their impurity levels.
该公司的产品以它们的不纯水平而闻名。