The foreign exchange market serves two main functions. The first is to convert the currency of one country into the currency of another.
外汇市场主要有两个作用：一是将一个国家的货币转换成另一个国家的货币；
By the way, keep your exchange memo safe. You may convert the unused RMB back into foreign currency when you leave China.
顺便提一下，保管好您的兑换单，离开中国时您可以把未用完的人民币兑换成外币。
Just click on any currency data on any web page to convert that amount across over 180 foreign exchange rates right on your screen.
只需点击网页上的货币数据，就可以直接在屏幕上进行180多种汇率的换算。
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