An American stepped into a gun shop,"Give me the most powerful pistol.""How many bullets do you need?"The American walked to a telephone booth, "Hello. Is that the bank? How many people do you have, please?"一个美国人走进枪支商店：“给我拿一支威力最大的手枪。”“您需要多少发子弹?”那个美国人走到公用电话间旁打电话：“喂，银行吗？请问你们有多少人？”