动词
中文翻译：污染
同义词：
['contaminate', 'soil', 'poll', 'contaminate', 'tain']
例句：
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1. The factory hasbeen heavily polluting the river with its wastewater.
这家工厂用其废水严重污染了这条河流。
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2. The pollution of the ocean is a serious threat to marine life.
海洋污染对海洋生物构成了严重的威胁。
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3. The government has taken measures to reduce air pollution in the city.
政府已经采取措施减少城市空气污染。