名词
中文翻译：污染
同义词：
['contamination', 'pollution', 'contamination']
例句：
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1.The factory has caused serious pollution to thenearby river.
工厂对附近的河流造成了严重的污染。
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2. The government is working hard to reduceair pollution in the city.
政府正在努力减少城市中的空气污染。
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3. The pollution of naturalwater is a major environmental issue.
自然水体的污染是一个重要的环境问题。