zuì jìn / de / duì huàn lǜ / bō dòng / hěn dà / chū guó / lǚ xíng / qián / zuì hǎo / duō / guān zhù

最近的兑换率波动很大，出国旅行前最好多关注。

The exchange rate has been fluctuating greatly recently; it's best to pay more attention before traveling abroad.