Beijing-Zhangjiakou high-speed railway opens

Passengers prepare to get on the high-speed train G2507 bound for Datongnan Railway Station at Xuanhuabei Station in Zhangjiakou, north China's Hebei Province, Dec. 30, 2019. The high-speed railway line connecting Beijing and Zhangjiakou in north China's Hebei Province went into service on Monday. Chongli railway, a branch line of the Beijing-Zhangjiakou high-speed railway, also went into service. (Xinhua/Feng Kaihua)