想說

一隻兔子重 2公斤              
                                                                           
寄出去到美國時變成 3 公斤 ......                                          
猜 "八仙過海 "神仙之一 名字                                                
                                                                           
答案是...............                                                      
                       
                                                                           
猜好了沒 ? 不要急於偷看答案