fluctuate
fluctuate
[ˈflʌktʃʊeɪt, -tjʊ-]
verb
fluctuation
noun
语源
[ˈflʌktʃʊeɪt, -tjʊ-]
verb
- [no obj.]rise and fall irregularly in number or amount
（数量）不规则波动，起伏
trade with other countries tends to fluctuate from year to year.
与他国贸易额往往逐年波动。
[as adj. fluctuating]a fluctuating level of demand.
波动的需求。
fluctuation
noun
语源
- mid 17th cent.: from Latin fluctuat- 'undulated', from the verb fluctuare, from fluctus 'flow, current, wave', from fluere 'to flow'
考试词汇表
