3 sentences

1. 今天的汇率是多少？

   jīn​tiān de huì​lǜ shì duō​shao?

   What is the exchange rate today?

   Source: Tatoeba

2. 银行通常会向旅客提供最好的汇率。

   yín​háng tōng​cháng huì xiàng lǚ​kè tí​gōng zuì​hǎo de huì​lǜ.

   Banks usually offer the best exchange rates to travelers.

   Source: CCMatrix

3. 你去柜台，注意到一个屏幕显示不同货币的不同汇率。

   nǐ qù guì​tái, zhù​yì dào yī​ge píng​mù xiǎn​shì bù​tóng huò​bì de bù​tóng huì​lǜ.

   You go up to the counter and notice a screen displaying different exchange rates for different currencies.

   Source: CCMatrix