我騎真正的自行車，座子高就傷膝蓋。把座子調到可以用腳掌中空的地方蹬車子的高度就不傷膝蓋了。

來源: 天兒晴了於 2022-01-19 14:15:46 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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