Survivors of the Nanjing Massacre (from right to left, front) Liu Minsheng, Cen Honggui, Wang Xiuying and Pu Yeliang, mourn the victims at the Memorial Hall of the Victims in Nanjing Massacre by Japanese Invaders in Nanjing, capital of east China's Jiangsu Province, April 4, 2017. A mourning ceremony was held here by survivors and family members of victims in the Nanjing Massacre during Tomb-Sweeping Day, or Qingming, when Chinese people commemorate their deceased loved ones by visiting tombs. (Xinhua/Sun Can)
