dual exchange rate

例句：

1. 1.The country's currency is pegged to the dollar at a dual exchange rate.
   该国货币以双重汇率与美元挂钩。
2. 2.The government has introduced a new policy that aims to maintain a dual exchange rate for its currency.
   政府推出了一项新政策，旨在保持其货币的双重汇率。
3. 3.This dual exchange rate system allows countries to maintain a stable exchange rate while still being able to adjust their currencies in response to market conditions.
   这种双重汇率制度允许各国在保持稳定汇率的同时，根据市场条件调整其货币。