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A railway policeman inspects a train with a police dog at a maintenance station to ensure safety for the upcoming Spring Festival travel rush in Beijing, capital of China, Jan. 19, 2019. (Xinhua/Li Xin)
A railway policeman inspects a train with a police dog at a maintenance station to ensure safety for the upcoming Spring Festival travel rush in Beijing, capital of China, Jan. 19, 2019. (Xinhua/Li Xin)