In lesson 4 of the Winter Olympics Chinese Series Courses Cheer for the Winter Olympics, we introduces some bright points of the 2022 Beijing Winter Olympics, such as ice making technology of Ice Ribbon and cool technology such as metal-awarding robot. These cool technologies will make the Beijing Winter Olympics more exciting. At the Knowledge Station, you will also learn the knowledge related to the 2022 Beijing Winter Olympic Games, such as the time and place of the opening and closing ceremony, the competition area and venues, as well as the emblem and mascot of the 2022 Beijing Winter Olympic Games.