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Fourth, all nations must act to deliver real results. "It is imperative that we work together to uphold the international system with the United Nations at its core as well as the multilateral trading system centering on the World Trade Organization," Wang said.

Comrade Tran Dai Quang was an outstanding party and state leader of Vietnam, and made great contributions to the development, renovation and opening-up of Vietnam, the Chinese president said.

According to the Chinese official, promoting cooperation for win-win development is the only choice for a lasting relationship between Beijing and Washington, enhancing mutual trust is the best cohesive force for strengthening the exchanges of the two armies, and respect and toleration are the rightful means of addressing differences and problems.

Xi and South African President Cyril Ramaphosa will both chair a roundtable discussion, where Chinese and African leaders will discuss China-Africa relations as well as international and regional issues of common concern.

U.S. Vice President Mike Pence delivered a speech at a think tank on the evening of Oct. 4, claiming that China interferes in U.S. internal affairs and elections and making accusations against China's domestic and foreign policies.