Alas, you didn't translate the words well. Others can't understand the roller skating time trial ahead. I don't understand the figure-of-eight standing behind. I can explain the legislation of the figure-of-eight standing: the toes are naturally separated and the heels are close together, forming an angle between 30 degrees and 45 degrees. The upper body leans forward slightly, and the knees naturally sag. The center of gravity falls between the feet to prevent the body from sliding back and forth. In fact, there are many intermediate station laws, such as T station legislation, parallel station legislation and so on.
Satisfied, please adopt.