Dong Chenggui and his wife take their granddaughter to board the train at Hanzhong Railway Station in Hanzhong, northwest China's Shaanxi Province, Jan. 21, 2019. Platforms, witnessing memorable moments of joy and sadness, are the epitome of each year's Spring Festival travel rush, during which hundreds of millions of Chinese go back to their hometowns for family gatherings. (Xinhua/Tao Ming)