鴨逃不掉, 隻要貓的速度比鴨的大pi倍以上
所有跟帖:
• no - ANSWER to this question is yes, (4.60338811) -guest007- ♀ (332 bytes) () 05/16/2010 postreply 19:44:57
• 回複:no - ANSWER to this question is yes, (4.60338811) -jinjing- ♀ (243 bytes) () 05/17/2010 postreply 19:52:54