Goods and services supply what people need or want. Goods are things such as food and clothing. Services include things such as health care and police protection.
商品和服务是指提供给人们需要或想要的东西。商品包括食物和服饰，服务包括医疗和安保。
A country needs natural and human resources. Natural resources include fresh water supplies, farmland and energy sources, such as oil and wind. Human resources include a skilled workforce that can produce goods and services.
国家需要自然资源和人力资源。自然资源包括淡水、农田和能源，如石油和风能，人力资源包括能够生产出商品和服务的熟练劳动力。
Once we have a supply of goods or services, they need to be distributed throughout a country. Highways and railways are both ways to transport things from one part of a country to another. Electricity is distributed through a system of transmission lines.
一旦我们有了商品或服务供应，就需要在全国范围内进行分配。公路和铁路都是一种将货物从国内的一处运输到另一处的方式。电力通过输电线路系统分配。
We live in an age of advertising. Advertising lets people know about goods and services. It educates people about the product being advertised.
我们生活在广告时代。广告让人们了解商品和服务，让人们了解正在做广告的产品。
Trade allows for the exchange of goods and services between different countries. Exports are goods and services that are sold to another country. Imports are goods and services that are bought from another country. For example, many countries import oil from countries such as Saudi Arabia.
贸易允许在不同的国家之间交换商品和服务。出口是指将商品和服务出售给另一个国家，进口是指从另一个国家购买商品和服务。例如，许多国家从沙特阿拉伯等国进口石油。
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