My assumption is that that grass can't grow anymore

來源: Rubikscube 於 2009-05-03 15:24:54 [] [博客] [舊帖] [給我悄悄話] 閱讀數 : (94 bytes)
回答: It's not that simple. 由 rubikscube 於 2009-05-03 13:28:07

once eaten by the cow. Biologically impossible but mathematically allowed.

One muggle

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