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Continue to Chat太陽系外衛星本身可能也有衛星或幫助人類找到外星人 https://blog.wongcw.com/2018/11/09/%e5%a4%aa%e9%99%bd%e7%b3%bb%e5%a4%96%e8%a1%9b%e6%98%9f%e6%9c%ac%e8%ba%ab%e5%8f%af%e8%83%bd%e4%b9%9f%e6%9c%89%e8%a1%9b%e6%98%9f%e6%88%96%e5%b9%ab%e5%8a%a9%e4%ba%ba%e9%a1%9e%e6%89%be%e5%88%b0%e5%a4%96/