Children wearing protective gears ride bicycles in Zhangye City, northwest China's Gansu Province, on Aug. 22, 2025. The summer vacation is coming to an end and children across the country have spent a wonderful holiday with diverse activities ranging from science and technology innovations to outdoor sports. (Photo by Yang Xiao/Xinhua)

Children play robot battle games at a science and technology training institution in Shanghai, east China, on Aug. 21, 2025. The summer vacation is coming to an end and children across the country have spent a wonderful holiday with diverse activities ranging from science and technology innovations to outdoor sports. (Xinhua/Fang Zhe)

Children play a battle game with robots made by themselves at a science and technology training institution in Shanghai, east China, on Aug. 21, 2025. The summer vacation is coming to an end and children across the country have spent a wonderful holiday with diverse activities ranging from science and technology innovations to outdoor sports. (Xinhua/Fang Zhe)

A girl assembles a remote control for toy airship at a science and technology training institution in Shanghai, east China, on Aug. 21, 2025. The summer vacation is coming to an end and children across the country have spent a wonderful holiday with diverse activities ranging from science and technology innovations to outdoor sports. (Xinhua/Fang Zhe)