Welcome to Voice of America's “News Words”, where we talk about words you may have heard in the news.
欢迎收听美国之音“新闻词汇”，我们将会在这里为您讲解您可能在新闻听过的词汇。
This News Word describes things that are important to modern life: infrastructures.
这个新闻词汇用于描述对现代生活很重要的东西：基础设施。
Defense Secretary Chuck Hagel says they have clear guidelines.
国防部长查克·哈格尔说他们有着明确的指导方针。
Protect our people and critical infrastructures in Iraq.
保护我们在伊拉克的人和重要的基础设施。
Infrastructure is a word for the physical structures needed to operate a society or country.
基础设施是指一个社会或国家运行所需的物质结构。

These can include roads, railways, airports and seaports.
这些结构包括公路，铁路，机场和海港。
They make transportation possible or provide water, electricity or fuel.
它们使交通运输成为可能，或者提供水，电或燃料。
Now, when you hear the word infrastructure, you will know what it means.
现在，当你听到单词“基础设施”时，你就知道它的意思了。