没有指南针，英国西班牙等500多年前能有地理大发现，从而殖民美澳，非洲印度等地？

来源: 老生常谈12 于 2024-08-11 12:30:03 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

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