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【聆听❤声】火星(9)
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"We are very convinced that at one time it was a 1.…………（此处无标点无大写）. And so now we are trying to understand how did it change, why did it change, what's still might be on Mars." These are deep Martian mysteries; if Mars and earth started as sister planets, did life once as dune the Martian surface? 2……………………（此处2个问号，1个句号,Martian,Earth ） "It's a fact that it is so much like earth. That kind of makes Mars such a special place."
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