名词
中文翻译：频率计划
同义词：
['schedule', 'schedule plan']
例句：
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1.The frequency of the earthquake is increasing.
地震的频率正在增加。
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2. The teacher needs to adjust the frequency of the lessons.
老师需要调整课程的频率。
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3. The frequency of this event has been reduced by half.
这个事件的频率已经减半。