名词
中文翻译：Unknown
同义词：
['acquired contamination', 'acquired pollution', 'acquired impurity']
例句：
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1. The water in the reservoir has become severely polluted due to the industrial runoff.
由于工业排放，水库中的水严重受到污染。
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2. The research team found that the soil was heavily contaminated with toxic chemicals.
研究小组发现土壤中含有大量有毒化学物质。
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3. The company has been accused of acquiring impurities during the production process.
该公司被指控在生产过程中获得了杂质。