送交者: HHS 于 2010-05-19, 15:44:25:

回答: 这篇文章说，帆船的几样关键技术都是秦人发明的 由 Amsel 于 2010-05-19, 15:33:31:

• You were not reading through. (无内容) - OldMountains (0 bytes) 2010-05-19, 16:41:20 (443484)

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