Long-term since, humans have speculated that Mars might exist, and even senior wisdom of life existence, although still life, but it is more increased interest in Mars exploration human.
长期以来，人类一直推测火星上可能存在生命，甚至存在高级智慧生命，尽管至今尚未证实，但这无疑更增加了人类探索火星的兴趣。
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