China’s left-behind children, 中國留守兒童

Counting the cost of China’s left-behind children - BBC News
http://www.bbc.com/news/world-asia-china-35994481

"Left-behind" children queue up for lunchtime at a school in Maguang County, Yunnan Province, China Photo: Rex
10 million 'left-behind children' in China go a full year without seeing their parents - Telegraph
http://www.telegraph.co.uk/news/worldnews/asia/china/11686079/10-million-left-behind-children-in-China-go-a-full-year-without-seeing-their-parents.html
觀察：中國留守兒童的家庭與生活 - BBC 中文网