Xi Jinping, general secretary of the Central Committee of the Communist Party of China, Chinese president and chairman of the Central Military Commission, takes the subway heading for the Beijing Daxing International Airport on Sept. 25, 2019. The operation ceremony of the airport was held in Beijing on the morning of Sept. 25, 2019. Xi attended the ceremony, announced the official opening of the airport and inspected the airport's platforms and check-in hall. (Xinhua/Xie Huanchi)