Passengers have breakfast 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. 14, 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 sleep 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. 14, 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]