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n.波动,涨落,起伏,[物]脉动;动摇不定,踌躇;[生]彷徨变异; 变形: 复数:fluctuations 英英释义: fluctuation[ ,flʌktju'eiʃən ]n.a wave motion"the fluctuations of the sea"an instance of change; the rate or magnitude of change同义词:variationthe quality of being unsteady and subject to changes"he