兑换商

例句：

1. 1. The currency exchanger at the airport is very busy.
   机场的货币兑换处非常繁忙。
2. 2. He was an exchanger of ideas between different cultures.
   他是不同文化间思想交流的桥梁。
3. 3. The exchanger rates for foreign currencies are changing rapidly.
   外国货币的兑换率正在迅速变化。