Photo taken on Dec. 29, 2020 shows souvenirs sold on a train of the Beijing-Zhangjiakou high-speed railway line. The railway line has received more than 6.8 million passengers since it was put into service on Dec. 30, 2019. (Xinhua/Li Xin)
In pics: Beijing-Zhangjiakou high-speed railway line
Source: Xinhua| 2020-12-30 16:44:30|Editor: huaxia
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