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Passengers queue to take trains at Nanjing Railway Station in east China's Jiangsu Province, April 30, 2019. Railway stations witness a travel rush as the May Day holiday is on hand. (Xinhua/Su Yang)
Passengers queue to take trains at Nanjing Railway Station in east China's Jiangsu Province, April 30, 2019. Railway stations witness a travel rush as the May Day holiday is on hand. (Xinhua/Su Yang)