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A train runs on the Juyongguan Pass section of the Beijing-Zhangjiakou railway in Beijing, capital of China, Oct. 25, 2015. (Xinhua/Yang Guang)
A train runs on the Juyongguan Pass section of the Beijing-Zhangjiakou railway in Beijing, capital of China, Oct. 25, 2015. (Xinhua/Yang Guang)