Mitchell, who has a PhD in aeronautics and astronautics from the Massachusetts Institute of Technology, said it's only a matter of time before we need to evacuate Earth and seek a new home.
米切尔拥有麻省理工学院的航空和航天博士学位，他说我们需要撤离地球去寻找新的家园只是时间的问题。
We need to evacuate planet Earth and move as many people as possible to Mars to live in enlarged manufactured cities.
我们需要疏散行星地球，并尽可能多的人移动到火星住在扩大的制造城市。
We need to evacuate planet Earth and move as many people as possible to Mars to live in enlarged manufactured cities.
我们需要疏散行星地球，并尽可能多的人移动到火星住在扩大的制造城市。
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