fluctuate ['flʌktjueit]
vi. 波动,涨落,起伏
【搭配】 (prices)fluctuate so much (价格)波动太大
fluctuate between hopes and fears 忽喜忽忧
【近义】synonmy sway [swei]:随意摆动、摇摆不定
swing [swiŋ]:有节奏地来回或前后转动
fluctuate:一般指价格的不规则变化或情绪的变动
flutter ['flʌtə]:指不规则的“飘动、飘扬”;鸟等振翼、拍翅只能用 flutter
【记忆】 He fluctuated between hope and despair. 他时而充满希望时而失望。
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