The above image was taken seconds after liftoff as the massive orbiter and six astronauts began a climb to a height where the atmosphere is so thin it is unbreathable.

上面这张照片是在发射后几秒钟拍下的，此时这艘巨大的航天飞机和六名宇航员正开始爬升到一个大气非常稀薄、无法呼吸的高度。

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If you do climb higher sooner, come back down to a lower height when you sleep.

如果你真的很快爬到了更高的地方，那就在你睡觉的时候回到较低的高度。

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If you climb to 10,000 feet, stay at that height for a day or two.

如果你爬到了一万英尺的高度，就在那个高度上停留一两天吧。

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There aren't too many occasions in life where one is called upon to climb a pole to a great height, stand atop it and then leap off--albeit while firmly strapped into a safety harness.

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