Combined photo shows the portrait of 64-year-old Chen Baolong (L) on Sept. 20, 2016 and Chen taking photo for students at class in the University for the Elderly in Tianjin, north China, Sept. 27, 2016. The University for the Elderly in Tianjin has 9 departments and provides various classes for a total of 26,730 aged students studying there. (Photo/Xinhua)
