40.check anchor position every 30 minutes.

每30分钟检查一下锚位。

So what you do is you turn over, you get in anchor position, you try to get this into the snow to slow yourself down or stop yourself.

所以你要做的就是翻身，锚定位置，试着把它卡进雪地里，让自己慢下来或停下来。