Huang Xin'an, a courier, shows the Chinese character "Fu", which means good luck, on the train G9402 which travels from east China's Shanghai to Jinzhai in east China's Anhui Province on Jan. 30, 2019. A free trip back home during the Spring Festival travel rush for over 400 couriers was arranged by the Cainiao Network Technology Co.,Ltd and the China Railway Shanghai Group Co.. (Xinhua/Chen Fei)