n.波动，涨落，起伏( fluctuation的名词复数 )

exchange fluctuations → 汇兑变动；汇价变动；外汇变动
voltage fluctuations → 电压起伏；电压波动
exchange rate fluctuations → 外汇汇价的波动；汇率波动；汇率变动；外汇汇率波动
fluctuations in discharge → 流量变化
diurnal fluctuations → 日变化
fluctuations in prices → 汇率波动；价格波动
drastic fluctuations in the economy → 经济剧烈波动
fluctuations in exchange → 汇率变动；汇兑变动；汇价波动