They work miracles Fully preparing for the Olympic and Paralympic Games in winter is the "three main things" that Beijing must focus on. In the past three years, the Chinese government has overcome numerous difficulties and advanced construction projects for the Winter Olympic Games in accordance with the law and in an orderly manner, which requires that "no one can stop it, we can't make a mistake, and we can't miss it one day.". By the end of this month, all competition venues in Beijing and Yanqing will have the conditions to compete. "The unknown silhouette" interviews a group of Winter Olympic builders. Some people have been fighting xiaohaituo mountain at an altitude of 2198 meters. Wind and snow created one miracle after another. Existing venues contribute wisdom; others practice the concept of Green Olympics and solve problems in ecological protection and environmental protection. It's thousands of people who have created an amazing "Winter Olympics speed.".