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Photo taken on Oct. 18, 2018 shows Qinglongqiao Station of the Beijing-Zhangjiakou railway in Yanqing District, Beijing, capital of China. (Xinhua/Zhang Chenlin)
Photo taken on Oct. 18, 2018 shows Qinglongqiao Station of the Beijing-Zhangjiakou railway in Yanqing District, Beijing, capital of China. (Xinhua/Zhang Chenlin)