專家隻在一個領域，而愛迪生在多個領域。我的發明涉及通信，交通，城市，社會，新冠戰略多個領域。

來源: solo1 於 2023-10-02 21:36:42 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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