Research on China's aged service trade under the background of the “Belt and Road” initiative = Research on China's aged service trade under the background of the “Belt and Road” initiative Research on dry-port-based cross-border logistics network under the background of the Belt and Road initiative China's foreign trade development under the background of Belt and Road initiative Research on China's OFDI and industrial upgrading under the Belt and Road initiative Research on China's foreign cultural trade under the Belt and Road initiative Research on China's inflation under the background of the exchange rate fluctuation Research on internationalization strategy of Chinese real estate enterprises under the background of the Belt and Road initiative Path to localization of Confucius Institutes under the background of the Belt and Road initiative Research on China's high-speed railway going out strategy under the Belt and Road initiative