Combined photo taken on Sept. 20, 2016 shows the portrait of 77-year-old Ma Jing (L) and Ma (1st R) having a class of costumes performance in the University for the Elderly in Tianjin, north China. 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)
