旅行前，请查询你要前往国家的汇率。

Before you travel, check the ___exchange ___rate for the country you're visiting.

在我把美元换成欧元之前，需要先查明汇率。

I need to find out the ___exchange ___rate before I change my dollars to euros.

目前的汇率让游客觉得所有东西都贵了很多。

The ___exchange ___rate makes everything much more expensive for tourists right now.