我只是陈述我和同事的对话。他是DBA，50多岁，非常fit。常年跑步。所以才问他是否担心膝盖。

来源: kathyzh 于 2022-10-15 09:21:44 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

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