
Twin sisters Huang Dayan (2nd R) and Huang Xiaoyan (3rd L) read books with their kids in Duanjiazhuang Village of Yuncheng, north China's Shanxi Province, April 23, 2017. The World Book Day falls on Sunday. (Xinhua/Gao Xinsheng)

Twin sisters Huang Dayan (2nd R) and Huang Xiaoyan (3rd L) read books with their kids in Duanjiazhuang Village of Yuncheng, north China's Shanxi Province, April 23, 2017. The World Book Day falls on Sunday. (Xinhua/Gao Xinsheng)