Added four years ago for snowboarding, big air makes its debut for freeski at the Beijing 2022 Winter Olympics. China's Gu Ailing won a gold medal in the freestyle skiing women's freeski big air final on Tuesday, taking the host country to the top of the medals table. Join us live to know more about the events Gu participates in at the Winter Games, such as slopestyle, halfpipe and big air. Snow sports experts answer your questions and rapper IceCraz performs "I See It All" in a live tribute to China's first gold medal in snow sports. Stay tuned!

About 'Winter Games Express'

Starting February 4, get aboard the world's first express train that incorporates a studio powered by 5G technology, linking Olympic competition zones: Beijing and Zhangjiakou. We'll bring you fresh news about the Winter Olympics, sneak peeks from the upcoming events and speak to Olympians about their preparations and feelings. We'll also turn to winter sports experts and fans to get their predictions and thoughts on the Games.