赞林兄言而有信，动笔速度真快！很有趣的介绍，我猜那时用马的原因，是这些河道小，可能还不能用蒸汽船，或成本太高，没马划算

来源: ToClouds 于 2023-05-19 12:32:48 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

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