foreign exchange fluctuation 基本例句 汇率波动 Actual billed rates may vary due to currency exchange fluctuations.实际费率会根据货币汇率波动而有所变更。 This dissertation is a explorative study of the law of exchange rate fluctuation by applying nonlinear economic theory.本论文是运用非线性经济学的理论与方法对汇率波动规律的探索性研究。