People visit the education services exhibition area of the 2020 China International Fair for Trade in Services (CIFTIS) in Beijing, capital of China, Sept. 5, 2020. The CIFTIS runs on Sept. 4-9 in Beijing. (Xinhua/Zhang Chenlin)

People visit the education services exhibition area of the 2020 China International Fair for Trade in Services (CIFTIS) in Beijing, capital of China, Sept. 5, 2020. The CIFTIS runs on Sept. 4-9 in Beijing. (Xinhua/Zhang Chenlin)

A visitor tries a Chinese-learning system in the education services exhibition area of the 2020 China International Fair for Trade in Services (CIFTIS) in Beijing, capital of China, Sept. 5, 2020. The CIFTIS runs on Sept. 4-9 in Beijing. (Xinhua/Zhang Chenlin)

A boy plays a VR game in the 5G communication services exhibition area of the 2020 China International Fair for Trade in Services (CIFTIS) in Beijing, capital of China, Sept. 5, 2020. The CIFTIS runs on Sept. 4-9 in Beijing. (Xinhua/Li Muzi)

People interact with a smart service robot in the 5G communication services exhibition area of the 2020 China International Fair for Trade in Services (CIFTIS) in Beijing, capital of China, Sept. 5, 2020. The CIFTIS runs on Sept. 4-9 in Beijing. (Xinhua/Li Muzi)

A man tries a VR driving simulator in the 5G communication services exhibition area of the 2020 China International Fair for Trade in Services (CIFTIS) in Beijing, capital of China, Sept. 5, 2020. The CIFTIS runs on Sept. 4-9 in Beijing. (Xinhua/Li Muzi)

A woman watches an unmanned mobile store in the 5G communication services exhibition area of the 2020 China International Fair for Trade in Services (CIFTIS) in Beijing, capital of China, Sept. 5, 2020. The CIFTIS runs on Sept. 4-9 in Beijing. (Xinhua/Zhang Chenlin)

A man learns about a smart blackboard in the 5G communication services exhibition area of the 2020 China International Fair for Trade in Services (CIFTIS) in Beijing, capital of China, Sept. 5, 2020. The CIFTIS runs on Sept. 4-9 in Beijing. (Xinhua/Li Muzi)

Photo taken on Sept. 5, 2020 shows the 5G communication services exhibition area of the 2020 China International Fair for Trade in Services (CIFTIS) in Beijing, capital of China. The CIFTIS runs on Sept. 4-9 in Beijing. (Xinhua/Zhang Chenlin)

People view a 5G smart car in the 5G communication services exhibition area of the 2020 China International Fair for Trade in Services (CIFTIS) in Beijing, capital of China, Sept. 5, 2020. The CIFTIS runs on Sept. 4-9 in Beijing. (Xinhua/Zhang Chenlin)

A child learns about an English-learning app in the education services exhibition area of the 2020 China International Fair for Trade in Services (CIFTIS) in Beijing, capital of China, Sept. 5, 2020. The CIFTIS runs on Sept. 4-9 in Beijing. (Xinhua/Li Muzi)

People visit the education services exhibition area of the 2020 China International Fair for Trade in Services (CIFTIS) in Beijing, capital of China, Sept. 5, 2020. The CIFTIS runs on Sept. 4-9 in Beijing. (Xinhua/Li Muzi)