名词
中文翻译：周期性交替
同义词：
['recurrent', 'cyclical', 'recurring']
例句：
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1.The periodic succession of seasons is a natural cycle.
季节的周期性交替是一个自然周期。
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2. The study of the periodic succession of stars is fascinating.
研究恒星周期性更替的研究令人着迷。
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3. The periodic succession of crops has a significant impact on food security.
作物的周期性更替对粮食安全有重大影响。