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Yang Weijian, head of the dinning carriage, cleans the kitchen on train No. K4186 from Fuzhou in southeast China's Fujian Province to Guang'an in southwest China's Sichuan Province on Jan. 21, 2019. (Xinhua/Song Weiwei)
Yang Weijian, head of the dinning carriage, cleans the kitchen on train No. K4186 from Fuzhou in southeast China's Fujian Province to Guang'an in southwest China's Sichuan Province on Jan. 21, 2019. (Xinhua/Song Weiwei)