Visitors experience a virtual reality city during the 2023 China International Fair for Trade in Services (CIFTIS) at Shougang Park in Beijing, capital of China, Sept. 5, 2023. (Xinhua/Lu Zhe)

Game players demonstrate a virtual reality game to the audience during the 2023 China International Fair for Trade in Services (CIFTIS) at Shougang Park in Beijing, capital of China, Sept. 5, 2023. (Xinhua/Lu Zhe)

A visitor takes a selfie in front of a naked eye 3D screen during the 2023 China International Fair for Trade in Services (CIFTIS) at Shougang Park in Beijing, capital of China, Sept. 5, 2023. (Xinhua/Lu Zhe)

Game players demonstrate a virtual reality game to the audience during the 2023 China International Fair for Trade in Services (CIFTIS) at Shougang Park in Beijing, capital of China, Sept. 5, 2023. (Xinhua/Lu Zhe)