The faster the speed, the greater the wind resistance; The greater the wind resistance, the more energy is consumed. When running, everyone knows that the difference between 3000m and 100m lies in your endurance and explosiveness, while cycling is equivalent to 3000m+ 100m. In order to keep the sprinter's physical strength to the final sprint, it is necessary to make him suffer less wind resistance, so it is necessary to have strong leading geese flying in the first place to bear the greatest wind resistance, like geese (if you can't understand why the wind resistance behind is small,

According to the movie I saw today and my life experience, I will play with my whole hand. Please forgive me if there is any mistake. I just want to share what I know.