Chinese President Xi Jinping met with former US President Barack Obama in Beijing on Wednesday, calling for enhanced communication, exchanges and cooperation between China and the United States.Xi made a positive appraisal of Obama's efforts in promoting China-US relations during his presidency.He stressed that China and the United States have an important responsibility to safeguard world peace and stability, as well as boost global development and prosperity.A long-term, stable and healthy development of Sino-US ties accords with the interests of both nations and the world, said Xi.China is ready to work with the US to strengthen communication, exchanges and cooperation, so as to push for new development of bilateral relations, he said.Xi briefed Obama on the major outcomes of the 19th National Congress of the Communist Party of China held in October.Obama thanked Xi for meeting with him and appreciated China's development achievements.Developing constructive US-China relations is in line with the interests of the two peoples, he said, noting that he will continue to play a positive role in promoting mutual understanding, exchanges and cooperation between the two countries.