谢谢芝士汉堡的鼓励！看的真仔细，前后轮都有刹车的：手刹控制前轮，脚刹（往后蹬）控制后轮

来源: hibiskus 于 2019-11-29 14:40:35 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

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