People visit a photo exhibition on Nanjing Massacre survivors at the Memorial Hall of the Victims in Nanjing Massacre by Japanese Invaders, in Nanjing, east China's Jiangsu Province. The exhibition kicked off here on Sunday. (Photo: Xinhua)

People visit a photo exhibition on Nanjing Massacre survivors at the Memorial Hall of the Victims in Nanjing Massacre by Japanese Invaders, in Nanjing, east China's Jiangsu Province. The exhibition kicked off here on Sunday. (Photo: Xinhua)

People visit a photo exhibition on Nanjing Massacre survivors at the Memorial Hall of the Victims in Nanjing Massacre by Japanese Invaders, in Nanjing, east China's Jiangsu Province. The exhibition kicked off here on Sunday. (Photo: Xinhua)

People visit a photo exhibition on Nanjing Massacre survivors at the Memorial Hall of the Victims in Nanjing Massacre by Japanese Invaders, in Nanjing, east China's Jiangsu Province. The exhibition kicked off here on Sunday. (Photo: Xinhua)