Research on international economic and trade law related to the Belt and Road Research on international Chinese education under the background of belt and road 并列题名:Study on international trade relations and status of countries on the Belt and Road International economic and trade system and law 并列题名:International economic and trade system and law Study on international trade relations and status of countries on the Belt and Road Development of regional economic and trade under the belt and road strategy Frontier of international economic and trade law