好好去查查这个可笑的四大发明，梁启超激越一说变成你等嘴里的技术了，真好笑！看查查这火药是那火药吗？航海指南针？？

来源: 玫瑰本来是玫瑰于 2023-08-10 13:11:10 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

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