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当你遇到一群火星生物,可能会对它们说:“快回去吧,地球很危险!”但如果面对的是一群从火星上飞回来的人类,那么你又当做何感想?
When you meet a group of Martian creatures, you might say to them: “Go back quickly, the earth is dangerous!” But what if you were faced with a group of humans that flew back from Mars?