actual exchange rate fluctuation的用法和样例：
- This dissertation is a explorative study of the law of exchange rate fluctuation by applying nonlinear economic theory.
- It seems the exchange rate fluctuates almost daily.
- Convertible Deposit allows you two weeks to enjoy interest returns higher than normal time deposits when exchange rate fluctuation is low.
- Renminbi(RMB)equilibrium exchange rate and macroeconomic effects of exchange rate fluctuation is a heatedly deputed and inevitable problem.