大家围成一个紧密的圆圈，先向上投掷雪球然后弯下身子，差不多每个人都被雪球击中了，但是没有人知道自己是被谁投出的雪球击中的，所以既没有恼怒也无法报复。
The idea is you gather in a tight circle, throw snowballs straight up and bend forward. Almost everybody gets hit, but since nobody knows by whom, there is no anger or retaliation.
身体右侧以身体左侧为轴向投掷方向转动，使链球获得向上一定的加速度和高度；
Use the right side of the body to throw the body aon the basic of the left turn, getting up to hammer a certain acceleration and height;
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