Passengers view point-of-sale (POS) terminals on a wall at Lujiazui subway station in east China's Shanghai, July 19, 2019. A total of 15 POS terminals recently appeared at Lujiazui Station of subway Line 2 in Shanghai. By linking their cellphones to the terminals, passengers can donate one yuan (about 15 U.S. cents) to get a poem written by children in remote rural areas printed on a receipt. All raised money will be used for charity to promote education in these areas. (Xinhua/Fang Zhe)