名词
中文翻译：Unknown
同义词：
['variation', 'fluctuation', 'change']
例句：
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1. The stock market experienced asignificant fluctuation in the past week.
过去一周，股市经历了显著的波动。
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2. The temperaturefluctuated between 20and 30 degrees Celsius.
温度在20到30摄氏度之间波动。
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3. The company's revenue fluctuated significantly during the quarter.
公司在季度内的收入波动很大。