Aerial photo taken on June 4, 2020 shows sanitation workers cleaning the sludge at a waterside platform as the water level gradually falls in Liuzhou, south China's Guangxi Zhuang Autonomous Region. Due to downpours in the upper reach of the Liujiang River, a flood peak of the river arrived in Liuzhou on Thursday, with the highest water level reaching 80.55 meters. (Photo by Li Hanchi/Xinhua)
