So how about the elementry school level Math.

来源: khyang86 于 2011-05-10 18:33:14 [] [旧帖] [给我悄悄话] 阅读数 : (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- ♂ 给 BigV8 发送悄悄话 (84 bytes) () 05/11/2011 postreply 00:14:29

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