最近的政治事件令货币汇率不稳定。

Zuìjìn de zhèngzhì shìjiàn lìng huòbì huìlǜ bù wěndìng.

Recent political events have made currency exchange rates unstable.

我们需要换算一下汇率。

Wǒmen xūyào huànsuàn yīxià huìlǜ.

We need to convert the exchange rate.

最近汇率的变动比较大。

Zuìjìn huìlǜ de biàndòng bǐjiào dà.

There have been significant changes in the exchange rate recently.