This combo photo shows passengers queuing up to board the trains at the Beijing Railway Station during the Spring Festival travel season in Beijing, capital of China, Jan. 12, 1993 (top, photo taken by Tang Zhaoming); and passengers prepare to board the trains after security check at the Lanzhou Railway Station in Lanzhou, northwest China's Gansu Province, Jan. 20, 2019 (bottom, photo taken by Chen Bin). (Xinhua)