『新东方在线托福口语』为托福考生准备了ETS托福TPO/Official 2 Task 4口语练习：<img src="/upload/ti/2426000-2427000/2426853/bb9c1ecbc8a34e648c4ea40c05bb685e.jpg">
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原文题目答案解析，TPO/Official 2 Task 4口语原文范文音频翻译。

托福TPO/Official 2 Task 4口语原文独立/综合口语题目答案解析-范文音频翻译-新东方托福官方网校手机版

旁白：现在听一听经济学课上的部分演讲。

Narrator: Now listen to part of a talk in an economics class.

一般来说，人们认为硬币和纸币是货币，

Well, typically, people think of coins and paper bills as money,

但这是对这个术语的狭义定义。

but that's using a somewhat narrow definition of the term.

钱是人们可以用来购物的东西。

Money is anything that people can use to make purchases with.

因为很多东西都可以用来购物，

Since many things can be used to make purchases,

当然，硬币和纸币是一种货币形式。

Certainly coins and bills are one form of money.

人们用硬币或纸币交换商品和服务，

People exchange goods and services for coins or paper bills,

他们用这些钱，这些钱来获得其他的商品和服务。

and they use this money, these bills, to obtain other goods and services.

例如，你可以给一个出租车司机5美元，让他载你一程，

For example, you might give a taxi driver five dollars to purchase a ride in his taxi,

然后他又给了我们5美元给一个农民买一些蔬菜。

and he in turn gives us five dollars to a farmer to buy some vegetables.

在这个宽泛的定义下，硬币和纸币并不是唯一的货币形式。

coins and bills aren't the only form of money under this broad definition.

一些社会利用一种易货交易制度，

Some societies make use of a barter system,

基本上在物物交换系统中，人们直接为其他商品和服务交换商品和服务。

basically in a barter system people exchange goods and services directly for other goods and services.

可能会开车载农民，为的是交换一些蔬菜。

might give a ride to a farmer in exchange for some vegetables.

因为这些蔬菜是用来支付服务的，根据我们的广义定义，

Since the vegetables are used to pay for a service, by our broad definition,

这些蔬菜以一种货币的形式被用在物物交换中。

the vegetables are used in barter as a form of money.

还有第二种，狭义的货币定义。

there is also a second, a narrower definition of money.

也就是说，按法律规定，卖方必须接受付款。

meaning that by law, a seller must accept them as payment.

出租车司机必须接受硬币或账单作为出租车的费用。

The taxi driver must accept coins or bills as payment for a taxi ride. OK?

但在美国，出租车司机不可以接受蔬菜作为开车载人的交换条件。

But in the U.S., the taxi driver is not required to accept vegetables in exchange for a ride.

所以狭义的货币定义可能是社会中的法定货币，

So a narrower definition of money might be whatever is legal tender in a society,

<img src="/upload/ti/2426000-2427000/2426853/bb9c1ecbc8a34e648c4ea40c05bb685e.jpg">
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Using points and examples from the talk, explain the two definitions of money presented by the professor. &nbsp;
 
 
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