[問卦] 為啥行李箱輪子那麼容易壞?
如題
行李箱最常壞的就輪子了
但明明以現代科技可以把輪子做到很堅固吧
為啥行李箱的輪子都好像紙糊的一樣
隨便拖個幾趟就壞
而且也不是拖什麼越野地形
幾千上萬的行李箱也一樣
為啥啊?
輪子沒辦法做得很堅固嗎?
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