中國的四輪車應該也是有轉向的，不然四輪車根本不可行。四輪車沒普及，估計一是成本問題，二是道路問題。

來源: 衡山老道於 2025-08-02 15:50:03 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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