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二恶英在环境和食品中以一种复杂的混合物形式出现。
Dioxins occur as a complex mixture in the environment and in food.
youdao
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二恶英是一种毒性极强的特殊有机化合物。
Dioxins are a kind of specific organic compounds which are extremely toxic.
youdao
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二恶英是一种毒性极强的特殊有机化合物。
Dioxins are a kind of specific organic compounds which are extremely toxic.
youdao