Performers show signs of the China International Fair for Trade in Services in the Wangfujing pedestrian street in Beijing, capital of China, Aug. 4, 2020. A theme event of welcoming the China International Fair for Trade in Services (CIFTIS) to be held in Beijing in September was held here on Tuesday. (Xinhua/Ren Chao)

A dancer performs during a theme event in the Wangfujing pedestrian street in Beijing, capital of China, Aug. 4, 2020. A theme event of welcoming the China International Fair for Trade in Services (CIFTIS) to be held in Beijing in September was held here on Tuesday. (Xinhua/Ren Chao)

A performer dances during a theme event in the Wangfujing pedestrian street in Beijing, capital of China, Aug. 4, 2020. A theme event of welcoming the China International Fair for Trade in Services (CIFTIS) to be held in Beijing in September was held here on Tuesday. (Xinhua/Ren Chao)

Performers dance during a theme event in the Wangfujing pedestrian street in Beijing, capital of China, Aug. 4, 2020. A theme event of welcoming the China International Fair for Trade in Services (CIFTIS) to be held in Beijing in September was held here on Tuesday. (Xinhua/Ren Chao)