国际贸易的边界效应有屏障和中介两个相反且可以相互转化的方面。

Border effects of international trade takes on two opposite and transferable sides: barrier and media.

youdao

国际贸易的边界效应有屏障和中介两个相反且可以相互转化的方面。

Border effects of international trade takes on two opposite and transferable sides: barrier and media.

youdao