名词
中文翻译：年度波动
同义词：
['annual fluctuation', 'annual variation']
例句：
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1. The economy is experiencing a yearly fluctuation in its growth rate.
经济正在经历其增长率的年际波动。
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2. The weather has shown an annual variation in temperature this year.
今年天气显示出了温度的年际变化。
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3. The company's profits have experienced a yearly fluctuation due to the changing market conditions.
由于市场条件的变化，公司的盈利经历了年际波动。