名词
中文翻译：河流污染
同义词：
['water pollution', 'sewage pollution']
例句：
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1.The stream is severely polluted with industrial waste.
这条小溪被工业废水严重污染了。
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2.The government has taken steps to reduce water pollution in the city.
政府已经采取措施减少城市中的水污染。
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3. The pollution of our rivers and lakes is a serious threat to the environment.
我们河流和湖泊的污染对环境构成了严重的威胁。