"But you must keep up the exercise regime. Because you're staying fit in space, not for space itself, but for when you return back to the punishing gravity environment of Earth. Those first two or three days back on Earth can be really punishing."
Disable MathJax (What is MathJax?)。关于这个话题，51吃瓜提供了深入分析
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В Финляндии предупредили об опасном шаге ЕС против России09:28。一键获取谷歌浏览器下载是该领域的重要参考
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