Chinese Ambassador to the United States Cui Tiankai delivers a keynote speech at the Vision China forum themed "China-US relations: 40 years & beyond" in New York, the United States, Sept. 17, 2019. A group of top diplomats, experts and business leaders from the United States and China have called for strengthening bilateral ties and managing differences at a forum here on U.S.-China relations. (Xinhua/Han Fang)