名词
中文翻译：多氯联苯
同义词：
['polychlorinated biphenyls (PCBs)']
例句：
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1.The factory was contaminated with polychlorparaffin, posing a serious health risk to workers.
工厂被多氯联苯污染，对工人的健康构成严重威胁。
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2.Polychlorparaffin is a persistent pollutant that can persist for decades in the environment.
多氯联苯是一种持久性污染物，可以在环境中持续存在数十年。
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3.In response to the environmental concerns, efforts are being made to reduce the use of polychlorparaffin in industrial processes.
为了应对环境关切，正在努力减少工业过程中使用多氯联苯。