My vet told me yesterday it shoud be N+1, meaning

來源: 穿高跟鞋的貓 於 2014-04-07 12:22:51 [] [舊帖] [給我悄悄話] 閱讀數 : (66 bytes)
回答: 倆貓需要準備幾個litter box， 由 COOOLCANADA 於 2014-04-07 11:35:17

number of cats plus one. That's the number of litter boxes needed.

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