名词
中文翻译：太阳活动
同义词：
['solar cycle', 'solar flare', "solar storm例句：1. Solar activity is a key factor in determining the Earth's climate.（太阳活动是决定地球气候的关键因素。）"]
例句：
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1. Solar activity is a key factor in determining the Earth's climate.
太阳活动是决定地球气候的关键因素。
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2.The recent increase in solar activity has caused concern among scientists.
近期太阳活动的增加引起了科学家的担忧。
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3.Solar activity can vary greatly from one year to the next, affecting weather patterns.
太阳活动在一年中可以有很大差异，影响天气模式。