One important part of space flight is the mental challenges that take place when you live with two other persons in what is really a large can.

 
  • 太空飛行的一個(gè)重要方面就是,當你和另外兩個(gè)人住在其實(shí)就是一個(gè)大鐵罐里的時(shí)候,心理上就會(huì )受到挑戰。
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