名词
中文翻译：波动
同义词：
['variation', 'change', 'fluctuation', 'variation例句：1. The stock market experienced a significant fluctuation in the past week.（过去一周，股市经历了显著的波动。）']
例句：
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1. The stock market experienced a significant 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 temperature has been fluctuating between 10°C and 20°C.
温度在10°C和20°C之间波动。
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3.The population of the city has been fluctuating due to economic changes.
由于经济变化，该市的人口一直在波动。