去日本旅行前，你需要把钱兑换成日元。

Before travelling to Japan, you'll need to exchange your money for Japanese ___currency.

访问一个新的国家时，携带一些当地货币是个好主意。

It's a good idea to carry some local ___currency when you visit a new country.

一个国家的货币价值相对于其他国家可能会发生变化。

The value of a country's ___currency can change compared to others.