此外，它们还含有二氧(杂)芑和多氯联苯，大大增加了致癌风险。

They also contain much higher levels of cancer causing dioxins and PCBs.

youdao

此外，它们还含有二氧(杂)芑和多氯联苯，大大增加了致癌风险。

They also contain much higher levels of cancer causing dioxins and PCBs.

youdao