A roller-skater practices his skills in the Olympic community square in Shijingshan District, Beijing, China, January 4, 2022. /CFP

A boy takes a close look at Bing Dwen Dwen, the official mascot of the Beijing 2022 Winter Olympics, during the Chinese Sports and Culture Exhibition at Capital Museum in Beijing, China, January 4, 2022. /CFP

A giant snow sculpture featuring the Beijing 2022 logo is seen at the Ice and Snow Park in Changchun, northeast China's Jilin Province, January 4, 2022. /CFP

Ice statues featuring winter athletes are seen in Zhaolin Park during the 48th Ice Lantern Festival in Harbin, northeast China's Heilongjiang Province, January 5, 2022. /CFP

The world's first 5G Express is pictured on the Beijing-Zhangjiakou high-speed railway, connecting Beijing with Winter Olympics co-host city Zhangjiakou, January 6, 2022. /CFP

A creative dish imitating alpine skiing figures is shown in a sports-themed restaurant in Beijing, China, January 6, 2022. /CFP

Portraits of Olympic champions are seen during the "Activation of Classic Collections" exhibition at the National Art Museum of China in Beijing, January 7, 2022. /CFP

A light show at the National Stadium, which will host the opening and closing ceremonies of the Beijing 2022 Winter Olympics, in Beijing, China, January 8, 2022. /CFP

A worker makes repairs to a screen at the Main Media Center of the Beijing 2022 Winter Olympics in Beijing, China, January 9, 2022. /CFP