September 12 marks the United Nations (UN) Day for South-South Cooperation. South-South cooperation, according to the UN, is a broad framework of collaboration among countries of the global South in areas ranging from politics, economics and society to culture, environment and technology. Under the framework, developing countries share knowledge, skills, expertise and resources to meet their development goals through concerted efforts. In this episode of "Come Together" series, CGTN looks at the Institute of South-South Cooperation and Development at China's prestigious Peking University.