But the town’s people would also want access to things that nobody in the city even knows how to make. For example, most towns and cities do not produce food, cars, gasoline, medicines, TVs, or films.
但镇上的人也想要镇上甚至没人会做的东西。举例来讲，大多数城镇和城市不生产粮食、汽车、汽油、药品、电视机或影片。因此他们需要从别处“进口”这些产品。为了向外人支付他们想要东西的对价，他们必须将自己能够制作的某种东西卖给他们。