一个在无限大的平面上爬行的虫子永远不会懂得什么叫高度，你不理解的并不代表不可能

来源: xsyswky 于 2011-09-03 16:54:36 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

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