A visitor enters Beijing Railway Station by facial recognition, on June 18, 2020. [Photo by Zou Hong/China Daily]

Pandemic-prevention staff members tackle virus elimination work at Beijing Railway Station, on June 18, 2020. [Photo by Zou Hong/China Daily]

Passengers return tickets at a window at Beijing Railway Station, on June 18, 2020. [Photo by Zou Hong/China Daily]

Passengers get comfortable in the waiting hall of Beijing Railway Station, on June 18, 2020. [Photo by Zou Hong/China Daily]

Passengers socially distance themselves in the waiting hall of Beijing Railway Station, on June 18, 2020 in Beijing. [Photo by Zou Hong/China Daily]