名词
中文翻译：污染危害
同义词：
['pollutant hazard', 'environmental hazard', "environmental risk例句：1. The factory's pollution of the river is a serious hazard to the ecosystem.（工厂对河流的污染是生态系统的一个严重威胁。）"]
例句：
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1. The factory's pollution of the river is a serious hazard to the ecosystem.
工厂对河流的污染是生态系统的一个严重威胁。
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2. The government has taken measures to reduce the pollution hazard from factories.
政府已经采取措施减少工厂造成的污染风险。
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3.The study found that the pollution hazard could be mitigated by implementing stricter regulations.
研究发现，通过实施更严格的法规可以减轻污染风险。