Xie Bihua (R) cooks food with his wife for his pupils at home in Dougu Township, southwest China's Guizhou Province, May 28, 2015. Xie, the only teacher of the Waying branch of the Guankou Primary School in Dougu Township, has taken care of about 20 pupils in the primary school for six years, during which he not only passed on knowledge to them, but also be responsible for their daily life. Located in the remote mountain area, the school was set up for pupils' convenience, who otherwise would have had to walk for more than two hours to school. (Xinhua/Yang Wenbin)