Three provinces of China make efforts to clean up water in tri-border area

Residents clean Longxi river in border area of east China's Jiangxi Province and Zhejiang Province, Aug. 24, 2018. In recent years, three provinces of east China's Zhejiang, Jiangxi and southeast China's Fujian have made efforts to clean up water cooperatively in their tri-border area. (Xinhua/Wang Xiaochuan)