There is an important connection between the environmental regulation, international trade and vertical structure.
环境规制、国际贸易与垂直性市场结构之间具有重要的联系。
This has already been a common regulation of environmental reservation.
这已经是环保的普遍规则了。
This has already been a common regulation of environmental reservation.
这已经是环保的普遍规则了。
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