Attendants Zhao Xiaoli (R) and Guo Xinqin eat at break time on the dining car of the special train K4186 for migrant workers from Fuzhou of southeast China's Fujian Province to Guang'an of southwest China's Sichuan Province, Jan. 13, 2017. The train, during its 2,084-km-long journey, took over 2,500 migrant workers home at Fujian, Jiangxi, Hubei, Shaanxi and Sichuan provinces in over 27 hours.[Photo by Jiang Kehong/Xinhua]

Passengers sit on the special train K4186 for migrant workers from Fuzhou of southeast China's Fujian Province to Guang'an of southwest China's Sichuan Province, Jan. 13, 2017. The train, during its 2,084-km-long journey, took over 2,500 migrant workers home at Fujian, Jiangxi, Hubei, Shaanxi and Sichuan provinces in over 27 hours.[Photo by Jiang Kehong/Xinhua]

A young passenger looks out of the window on the special train K4186 for migrant workers from Fuzhou of southeast China's Fujian Province to Guang'an of southwest China's Sichuan Province, Jan. 13, 2017. The train, during its 2,084-km-long journey, took over 2,500 migrant workers home at Fujian, Jiangxi, Hubei, Shaanxi and Sichuan provinces in over 27 hours.[Photo by Jiang Kehong/Xinhua]