A police officer guides passengers out of Beijing West Railway Station on Feb 17, 2021, which is the last day of the week-long Spring Festival holiday. [Photo by Wei Xiaohao/China Daily]

Passengers leave the Beijing West Railway Station, on Feb 17, 2021. [Photo by Wei Xiaohao/China Daily]

Passengers leave the Beijing West Railway Station, on Feb 17, 2021. [Photo by Wei Xiaohao/China Daily]

A child is among the passengers leaving Beijing West Railway Station, on Feb 17, 2021. [Photo by Wei Xiaohao/China Daily]

Passengers arrive at Beijing West Railway Station, on Feb 17, 2021. [Photo by Wei Xiaohao/China Daily]