Staff members are seen on a train of the Beijing-Zhangjiakou high-speed railway line, in Beijing, capital of China, Jan. 21, 2022. The service of this railway line for Beijing 2022 started from Jan. 21, 2022. (Xinhua/Liu Xu)
Passengers are ready to get in a train of the Beijing-Zhangjiakou high-speed railway line, in Beijing, capital of China, Jan. 21, 2022. The service of this railway line for Beijing 2022 started from Jan. 21, 2022. (Xinhua/Liu Xu)
A passenger accepts security check to get in a train of the Beijing-Zhangjiakou high-speed railway line, in Beijing, capital of China, Jan. 21, 2022. The service of this railway line for Beijing 2022 started from Jan. 21, 2022. (Xinhua/Liu Xu)
Passengers are seen on a train of the Beijing-Zhangjiakou high-speed railway line, in Beijing, capital of China, Jan. 21, 2022. The service of this railway line for Beijing 2022 started from Jan. 21, 2022. (Xinhua/Liu Xu)
A train of the Beijing-Zhangjiakou high-speed railway line departs in Beijing, capital of China, Jan. 21, 2022. The service of this railway line for Beijing 2022 started from Jan. 21, 2022. (Xinhua/Liu Xu)
Passengers get in a train of the Beijing-Zhangjiakou high-speed railway line, in Beijing, capital of China, Jan. 21, 2022. The service of this railway line for Beijing 2022 started from Jan. 21, 2022. (Xinhua/Liu Xu)
A train of the Beijing-Zhangjiakou high-speed railway line departs in Beijing, capital of China, Jan. 21, 2022. The service of this railway line for Beijing 2022 started from Jan. 21, 2022. (Xinhua/Liu Xu)
Photo taken on Jan. 21, 2022 shows the information about a train of the Beijing-Zhangjiakou high-speed railway line in Beijing, capital of China. The service of this railway line for Beijing 2022 started from Jan. 21, 2022. (Xinhua/Liu Xu)
Passengers show a painting about Beijing 2022 Winter Olympics before getting in a train of the Beijing-Zhangjiakou high-speed railway line, in Beijing, capital of China, Jan. 21, 2022. The service of this railway line for Beijing 2022 started from Jan. 21, 2022. (Xinhua/Liu Xu)
Photo taken on Jan. 21, 2022 shows a train of the Beijing-Zhangjiakou high-speed railway line in Beijing, capital of China. The service of this railway line for Beijing 2022 started from Jan. 21, 2022. (Xinhua/Liu Xu)
Passengers are ready to get in a train of the Beijing-Zhangjiakou high-speed railway line, in Beijing, capital of China, Jan. 21, 2022. The service of this railway line for Beijing 2022 started from Jan. 21, 2022. (Xinhua/Liu Xu)
Passengers take selfies before getting in a train of the Beijing-Zhangjiakou high-speed railway line, in Beijing, capital of China, Jan. 21, 2022. The service of this railway line for Beijing 2022 started from Jan. 21, 2022. (Xinhua/Liu Xu)
Passengers get in a train of the Beijing-Zhangjiakou high-speed railway line, in Beijing, capital of China, Jan. 21, 2022. The service of this railway line for Beijing 2022 started from Jan. 21, 2022. (Xinhua/Liu Xu)
Passengers are ready to get in a train of the Beijing-Zhangjiakou high-speed railway line, in Beijing, capital of China, Jan. 21, 2022. The service of this railway line for Beijing 2022 started from Jan. 21, 2022. (Xinhua/Liu Xu)
