fluctuation是可数名词

基本解释：n. 波动，涨落，起伏，[物]脉动；动摇不定，踌躇；[生]彷徨变异

变化形式：复数 fluctuations

例句：The fluctuation of the gold price would be minimal .

金价将在很小区间波动。

Mr. dai suggested ' fixing a reasonable fluctuation band for the u. s. dollar exchange rate ' in the context of reforms to the international monetary system .

戴相龙建议，在国际货币体系改革的背景下，为美元汇率设立合理的浮动区间。