What are the rules of cross-country skiing in the Winter Olympics?

Cross-country skiing competition involves two technical rules: traditional technique and free technique.

Traditional techniques include alternating sliding, double stick sliding, eight-step non-sliding stage, sliding down and turning. Two feet or one foot of ice is not allowed. The skis must be placed in the pressed snow trough, and the two skis should be kept parallel to the sliding direction. Athletes can move forward by swinging their legs back and forth and having snowball fights. Athletes "step" forward is similar to walking, except that when skiing, they use snowball fights to generate thrust, and each step will slide for a certain distance. When they slide, they feel like sliding on the marble surface in smooth shoes. When overtaking the athlete in front, you can jump out of the snow slot and slide in the other direction, especially downhill and flat ski slopes are the golden stage of overtaking your opponent. When the athlete behind wants to overtake, he can step on the snowboard of the athlete in front to remind him. After being reminded, the athlete in front must make way for the snowy road, otherwise it will be regarded as a foul. Free technique has no restrictions on technical movements, and athletes can adopt any technical movements.