教授的算法很新奇，把國家們就這樣“合並”了，世界在愛旅行的人心中早就大同了，省得簽證了！

來源: 經緯線於 2015-08-08 17:26:13 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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