
Graduate Guo Gaixuan (C) poses for photo with his grandparents during a graduation ceremony in the University of Science and Technology of China (USTC) in Hefei, capital of east China's Anhui Province, June 20, 2017. (Xinhua/Yang Xiaoyuan)

Graduate Guo Gaixuan (C) poses for photo with his grandparents during a graduation ceremony in the University of Science and Technology of China (USTC) in Hefei, capital of east China's Anhui Province, June 20, 2017. (Xinhua/Yang Xiaoyuan)