有沒有想過把圓周率用鋼琴彈奏下來？

來源: 路邊野花不採白不採於 2016-04-13 16:03:04 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

有沒有想過把圓周率用鋼琴彈奏下來？

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