Workers keep bullet trains in good condition for festival travel rush (3)

A cleaner works at a bullet train maintaining center in Changsha, central China's Hunan Province, Jan. 25, 2016. Workers are occupied in the maintenance of bullet trains to keep them in good condition for the Spring Festival travel rush, which kicked off on Jan. 24. Spring Festival, China's most important holiday centering around family reunions, will fall on Feb. 8. (Xinhua/Li Ga)