This combo photo shows cleaners washing a train at the end of the Spring Festival travel season at the Guiyang Railway Station in Guiyang, southwest China's Guizhou Province, March 5, 2005 (top, photo taken by Wu Dongjun); and a cleaner washing a bullet train at a depot in Wuhan, central China's Hubei Province, early on Feb. 10, 2011 (bottom, photo taken by Cheng Min). (Xinhua)