chinese capital beijing and north china's hebei province's zhangjiakou city, the two competition zones of the 2022 winter olympics, are some 180 kilometers apart. how will the participating athletes, coaches, officials and journalists travel from one zone to another? a train on the beijing-zhangjiakou high-speed railway is the first ever in the world that has a carriage for livestreaming and broadcast service with 5g technologies. cgtn's yan meiyi takes you along for a ride on the bullet train.
