xkcd
英文频道
中文频道
XKCD中文站,一个关于浪漫、隐喻、数字、以及语言的线上漫画。
Global Atmospheric Circulation
中文翻译
Refs generally say that you can exercise enough altitude control to avoid the ground, but if you start strategically choosing air layers to steer yourself, that's traveling.
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中文翻译
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