Children participate in an outdoor physical training camp during summer vacation in Xinyu, east China's Jiangxi Province, July 12, 2018. (Xinhua/Zhao Chunliang)

Students of a local primary school compete in a friendly soccer match during summer vacation in Renhuai, southwest China's Guizhou Province, July 12, 2018. (Xinhua/Chen Yong)

Students of a local primary school attend a swimming class during summer vacation in Qionghai, south China's Hainan Province, July 12, 2018. (Xinhua/Meng Zhongde)

Students learn dancing during a class in Qinzhou City, south China's Guangxi Zhuang Autonomous Region, July 12, 2018. Students learn new skills during their summer vacation. (Xinhua/Zhang Ailin)

Students learn drawing during a class in Qinzhou City, south China's Guangxi Zhuang Autonomous Region, July 12, 2018. Students learn new skills during their summer vacation. (Xinhua/Zhang Ailin)