A train crew member waits for passengers on the high-speed train D4385 in Yinchuan, northwest China's Ningxia Hui Autonomous Region, on Dec. 26, 2020. A new high-speed railway linking Yinchuan, capital of Ningxia Hui Autonomous Region, with Xi'an, capital of Shaanxi Province, both in western China, began operation from Saturday. The 610-km railway was built with an investment of 80.5 billion yuan (about 12.33 billion U.S. dollars),and the speed of the train has been set to 250 km per hour. (Xinhua/Tang Rufeng)

A journalist livestreams an attendant on the high-speed train D4385 linking Yinchuan, capital of Ningxia Hui Autonomous Region, with Xi'an, capital of Shaanxi Province, on Dec. 26, 2020. A new high-speed railway linking Yinchuan, capital of Ningxia Hui Autonomous Region, with Xi'an, capital of Shaanxi Province, both in western China, began operation from Saturday. The 610-km railway was built with an investment of 80.5 billion yuan (about 12.33 billion U.S. dollars),and the speed of the train has been set to 250 km per hour. (Xinhua/Tang Rufeng)

Passengers pose for photos in front of the high-speed train D4385 in Yinchuan, northwest China's Ningxia Hui Autonomous Region, on Dec. 26, 2020. A new high-speed railway linking Yinchuan, capital of Ningxia Hui Autonomous Region, with Xi'an, capital of Shaanxi Province, both in western China, began operation from Saturday. The 610-km railway was built with an investment of 80.5 billion yuan (about 12.33 billion U.S. dollars),and the speed of the train has been set to 250 km per hour. (Xinhua/Tang Rufeng)

Passengers wait for departure on the high-speed train D4385 in Yinchuan, northwest China's Ningxia Hui Autonomous Region, on Dec. 26, 2020. A new high-speed railway linking Yinchuan, capital of Ningxia Hui Autonomous Region, with Xi'an, capital of Shaanxi Province, both in western China, began operation from Saturday. The 610-km railway was built with an investment of 80.5 billion yuan (about 12.33 billion U.S. dollars),and the speed of the train has been set to 250 km per hour. (Xinhua/Tang Rufeng)