fluctuated
v.
波动，涨落，起伏( fluctuate的过去式和过去分词 );
例句:
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His weight fluctuated, he chewed diet pills and Nicorette.
来自NEWYORKER
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All year she has fluctuated between optimism and despair.
全年当中她时而乐观,时而消沉.
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He fluctuated between hope and despair.
他时而充满希望时而失望.
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Her family had of late exceedingly fluctuated.
她家里最近连起风波.
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Per capita use of energy has fluctuated around a median.
来自WSJ
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The price of staple goods has fluctuated week by week.
来自VOA