The field is thicker indoor than the outside snow, so it's more fun to play, skiing is still more fun, without the coach, I fell over there to ponder, about an hour can play sliding, do not fear falling, no pain at all (the first kind: body half tilt forward, half squat, with eight words or two legs parallel, hands press knees, right left foot to push the ground, left foot hard. Push your right foot hard on the ground. The second one is squatting directly, and the direction control is the same as the first one. Even if the technique of turning to acceleration has not been worked out, some coaches can play downward and upward.