有机磷农药和有机氯农药是农药残留的两大类型。

The organic phosphorus pesticides and organochlorine pesticides are two major types of pesticide residues.

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有机磷农药和有机氯农药是农药残留的两大类型。

The organic phosphorus pesticides and organochlorine pesticides are two major types of pesticide residues.

youdao