They are the cleaning staff on the U-shaped ice rink. They appear after each game. They perform their skiing skills and slide back and forth on the track with cleaners. The athletes are valiant in the competition, but during the break, the staff clean up the site.

They are the food caterers who conduct random inspections to ensure food safety at 3 am every day, and do their best to ensure it. They supervise in the back kitchen to guarantee that everything is safe.

They are the signal technicians. At night, the temperature of the snow sports site is close to-30 C, and the 3-kilometer track is covered with cameras. In order to prevent the equipment from freezing, the staff pad and insulate the cameras. In order to pick up the best sound effects, they need to lay audio cables and equipment on the mountain. Since the cable car can only go to the top of the mountain, the staff have to carry a 30-pound camera and climb to the designated positions on foot.

They are the medical staff. Hand sanitizers are placed in public areas; scientific and technological COVID-19 prevention measures are actively promoted, and disinfection robots roam and disinfect different areas.

The advanced and intelligent competition venues, strict and efficient COVID-19 prevention measures, the warm and comfortable living environment ... the meticulous service guarantees the success of the games.