A member of the Chihu emergency rescue team demonstrates how to put out a fire at Nanshexing Primary School in Xinzhen Town of Wen'an County, north China's Hebei Province, June 19, 2018. The Chihu emergency rescue team, a commonweal organization in Wen'an County, promoted to pupils knowledge of disaster prevention and reduction, safety awareness and rescue skills ahead of the summer vacation. (Xinhua/Li Xiaoguo)