China says the tougher standard on foreign material is needed to protect against crop disease.

中国称之所以强化外国原材料的检验标准，是为了防止农作物病害的发生。

youdao

China says the tougher standard on foreign material is needed to protect against crop disease.

中国称之所以强化外国原材料的检验标准，是为了防止农作物病害的发生。

youdao