Whatisfunny?Theshortansweris:Whoknows?Thejokethatcau...
问题详情： Whatisfunny?Theshortansweris:Whoknows?Thejokethatcausesaburstoflaughterfromonelistenermightbemetwithapuzzledlookfromanother. Ingeneral,youshouldavoidjokesatanybusinessorsocialgather...