名词
中文翻译：污染
同义词：
['pollution', 'contamination', 'pollution level']
例句：
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1.The factory has been heavily contaminated by the chemical spill.
这家工厂因化学物质泄漏而受到严重污染。
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2. The government is working to reduce the level of contamination in the environment.
政府正在努力减少环境污染的水平。
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3. The contamination of the water source has led to a decline in the quality of life for many people.
水源的污染导致许多人的生活品质下降。