Residents of Zhengzhou City in central China's Henan Province wade through waist-deep floodwater as extreme downpours hit the city, July 20, 2021. /CFP

Visitors tour a photo exhibition showcasing selections of China's 55 UNESCO World Heritage sites in Fuzhou City, southeast China's Fujian Province, July 20, 2021. /CFP

A dog owner blow dries an Alaska sled dog at a newly opened self-service pet wash shop in Chengdu City, southwest China's Sichuan Province, July 21, 2021. /CFP

People queue up to receive COVID-19 tests at a testing site in Jiangning Sports Center as the city of Nanjing launched a citywide nucleic acid testing campaign after new infections emerged at Nanjing's international airport earlier this week, in Nanjing, east China's Jiangsu Province, July 21, 2021./CFP

Students of an elementary school are chosing and reading by a bookshelf. The school will remain open during the July-August summer vacation to provide daycare services for its students, in Shenyang, northeast China's Liaoning Province, July 23, 2021. /CFP

A visitor takes a picture of a Buddha head from Tianlongshan Grottoes that was returned to its home in Taiyuan City, north China's Shanxi Province, July 24, 2021. /CFP

A traffic policeman helps a resident evacuate from a seawater-flooded area in Daishan County, Zhoushan City, east China's Zhejiang Province, July 24, 2021, as Typhoon In-Fa approaches the coastal areas of east China's Zhejiang and Fujian provinces. /CFP