Pest management must be under control of the certified operator, even if contract pest control.

虫害控制必须由获得认证的操作者管理，契约虫害控制也一样。

youdao

Pest management must be under control of the certified operator, even if contract pest control.

虫害控制必须由获得认证的操作者管理，契约虫害控制也一样。

youdao