今天的兑换率是多少？
Please tell me what you would give me for my U.S. dollars.
请告诉我这些美圆可以兑换多少钱。
Please tell me the current rate for sterling.
请告诉我英国货币的现行兑换率。
If you'll wait a moment, I'll find out the rates of exchange.
请等一会儿，我查一下兑换率。
Please wait a moment. I'll find out the exchange rate between U.S. dollars and RMB.
请等一会儿，我查一下美圆对人民币的兑换率。
It's 470 yuan for 100 dollars.
100美圆可兑470元。
The exchange rate today is 200 yen to the pound.
今天的兑换率是一英镑可兑200日圆。
The rate for traveler's cheques is 300 yuan against 100 dollars.
旅行支票的兑换率是100美圆兑300元。
These dollars are worth 1,000 yuan.
这些美圆可换1000元。
　
Useful Phrases
exchange table, conversion table 汇兑换算表
foreign exchange 外汇
exchange rate 外汇率

conversion rate 折合率
foreign exchange restriction 外汇限额
foreign exchange quotations 外汇行情
to check the rate for sb. 查牌