By the third year of his four-year term, President Bush's international activities had made him an extremely popular president.

执政的第三年，布什总统因为国际活动广受欢迎。

Multiple exchange rates refers to a currency with complex exchange rates, different exchange rates used for different international economic activities.

多重汇率是指具有复杂汇率的货币，不同的汇率用于不同的国际经济活动。