Ye Lianping prepares for the next day's English class in the classroom of the "home for left-behind children" in Buchen Village of Hexian County, east China's Anhui Province, July 30, 2019. Ye Lianping, a 92-year-old retired teacher in Buchen Village of Hexian County, set up the "home for left-behind children" in 2000 to teach them English lessons for free. Left-behind children refer to the children whose parents leave for big cities to earn money. (Photo by Huang Bohan/Xinhua)