So how about the elementry school level Math.

來源: khyang86 於 2011-05-10 18:33:14 [] [舊帖] [給我悄悄話] 閱讀數 : (56 bytes)

Some people seemed to have trouble to understand.

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• 哈哈，my dog knows a lot about this car... -BigV8- ♂ 給 BigV8 發送悄悄話 (84 bytes) () 05/11/2011 postreply 00:14:29

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