official rate of exchange

• n. 官方汇率；法定汇率

official rate of exchange的用法和样例：

例句

用作名词 (n.)

1. Official rate set by monetary authorities for one or more currencies.
   货币管理当局对一种或多种货币设置的官方汇率。
2. Do you have a currency conversion service for changing FEC into foreign currency at the official rate?
   你们有按官方汇率把人民币兑换成外币的服务吗？