A train crew member waits for passengers to board the train D4618 bound for Taiyuan, at Zhengzhou Railway Station in Zhengzhou, central China's Henan Province, Dec. 12, 2020. A new high-speed passenger railway linking Zhengzhou, capital of Henan Province, and Taiyuan, capital of Shanxi Province, started operation on Saturday. (Xinhua/Li An)