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Workers clean a bullet train at a maintenance station to ensure safety for the upcoming Spring Festival travel rush in Guiyang, capital of southwest China's Guizhou Province, Jan. 19, 2019. (Xinhua/Ou Dongqu)
Workers clean a bullet train at a maintenance station to ensure safety for the upcoming Spring Festival travel rush in Guiyang, capital of southwest China's Guizhou Province, Jan. 19, 2019. (Xinhua/Ou Dongqu)