币

例句：

1. 1. He bought a new car with his savings.
   他用积蓄买了一辆新车。
2. 2. The bank offers competitive interest rates for its customers.
   银行为顾客提供有竞争力的利率。
3. 3. The currency exchange rate fluctuates daily due to market fluctuations.
   由于市场波动，货币兑换率每天波动。