the best currency area

• 最优货币区

the best currency area的用法和样例：

例句

1. According to the theory of optimal currency areas, a central fiscal policy is necessary because a single interest rate will not suit conditions in all parts of a currency zone.
   根据最优货币区域理论，确立一个中央财政政策很有必要，因为单一利率并不适于货币区域内所有地区的情况。