Photo taken on Sept. 1, 2020 shows a view of the outdoor exhibition area near the China National Convention Center, where the China International Fair for Trade in Services (CIFTIS) will be held, in the Beijing Olympic Park in Beijing, capital of China. The CIFTIS, a major platform for the services trade in the country, will be held in early September in Beijing. (Xinhua/Peng Ziyang)

Photo taken on Sept. 1, 2020 shows a view of the outdoor exhibition area near the China National Convention Center, where the China International Fair for Trade in Services (CIFTIS) will be held, in the Beijing Olympic Park in Beijing, capital of China. The CIFTIS, a major platform for the services trade in the country, will be held in early September in Beijing. (Xinhua/Peng Ziyang)

Photo taken on Sept. 1, 2020 shows an interior view of the China National Convention Center where the China International Fair for Trade in Services (CIFTIS) will be held in Beijing, capital of China. The CIFTIS, a major platform for the services trade in the country, will be held in early September in Beijing. (Xinhua/Peng Ziyang)

A woman watches a promotional video of winter games in an outdoor exhibition pavilion near the China National Convention Center, where the China International Fair for Trade in Services (CIFTIS) will be held, in the Beijing Olympic Park in Beijing, capital of China, Sept. 1, 2020. The CIFTIS, a major platform for the services trade in the country, will be held in early September in Beijing. (Xinhua/Peng Ziyang)

Photo taken on Sept. 1, 2020 shows a food delivery robot working in an outdoor exhibition pavilion near the China National Convention Center, where the China International Fair for Trade in Services (CIFTIS) will be held, in the Beijing Olympic Park in Beijing, capital of China. The CIFTIS, a major platform for the services trade in the country, will be held in early September in Beijing. (Xinhua/Peng Ziyang)

Photo taken on Sept. 1, 2020 shows a rehabilitation robot functioning in an outdoor exhibition pavilion near the China National Convention Center, where the China International Fair for Trade in Services (CIFTIS) will be held, in the Beijing Olympic Park in Beijing, capital of China. The CIFTIS, a major platform for the services trade in the country, will be held in early September in Beijing. (Xinhua/Peng Ziyang)

Photo taken on Sept. 1, 2020 shows a robot model at the outdoor exhibition area near the China National Convention Center, where the China International Fair for Trade in Services (CIFTIS) will be held, in the Beijing Olympic Park in Beijing, capital of China. The CIFTIS, a major platform for the services trade in the country, will be held in early September in Beijing. (Xinhua/Peng Ziyang)

Photo taken on Sept. 1, 2020 shows a cleaning robot working in an outdoor exhibition pavilion near the China National Convention Center, where the China International Fair for Trade in Services (CIFTIS) will be held, in the Beijing Olympic Park in Beijing, capital of China. The CIFTIS, a major platform for the services trade in the country, will be held in early September in Beijing. (Xinhua/Peng Ziyang)

Photo taken on Sept. 1, 2020 shows winter games statues exhibited in an outdoor exhibition pavilion near the China National Convention Center, where the China International Fair for Trade in Services (CIFTIS) will be held, in the Beijing Olympic Park in Beijing, capital of China. The CIFTIS, a major platform for the services trade in the country, will be held in early September in Beijing. (Xinhua/Peng Ziyang)