Do you think we can glide down this glacier?
你觉得我们可以从冰河上滑行下去吗？
In this drill, you can easily return right back to Superman Glide and do the other side without standing up.
在这个练习中，你能容易地回到超人滑行的姿势，然后再做另一边的动作。
It determines how much drag you produce, how quickly you can stroke and how well you glide.
它决定了你产生了多大的阻力，你的动作有多快与你能滑行得多好。
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