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?"