回複:鴨子落到圓形湖中

If the fox is 007,the duck will die. If not and the duck is 007 he will be free.The duck swims face to the fox,the fox excites.When duck swims near the bank,and back to the center slowly,the fox run soon around the lake,...duck back again and ......free.

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of course you assume fox is extremly smart -guest007- 給 guest007 發送悄悄話 (53 bytes) () 05/09/2010 postreply 10:59:19

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