Aerial photo taken on April 30, 2020 shows Ji Ming patrolling the Daming Lake on a boat in Jinan, east China's Shandong Province. Ji Ming, 56, is one of the sanitary workers in charge of the Daming Lake and he has been in this business for 20 years. Ji and his colleagues are committed to maintaining the sanitation of the Daming Lake, one of the famous tourist attractions in Shandong. (Xinhua/Wang Kai)
