Witnessing original speed of 35 kilometers per hour up to 350 today, the Beijing-Zhangjiakou railway, the first designed and built by Chinese, shows the development of the country's railways and economy.
Xinhua丨Updated: May 23, 2019
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A staff member gestures as the last train runs out of the Zhangjiakou North Railway Station before it was discharged in Zhangjiakou, north China's Hebei Province on June 30, 2014. [Photo/Xinhua]