二恶英是一类毒性极高的持久性有机污染物，能够给生态环境带来巨大的危害。

Dioxin is a kind of POPs with high toxicity, it will bring huge harm to ecology environment.

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二恶英是一类毒性极高的持久性有机污染物，能够给生态环境带来巨大的危害。

Dioxin is a kind of POPs with high toxicity, it will bring huge harm to ecology environment.

youdao