名词
中文翻译：恒星年
同义词：
['astronomical year', 'solar year']
例句：
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1. The astronomy department hasbeen studying the stars for decades.
天文系已经研究星星几十年了。
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2. Thesolar system consists of thesun, planets, moons, and other celestial bodies.
太阳系由太阳、行星、月球和其他天体组成。
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3. Theastrophysicist calculated the age ofthe galaxy based on its distance from Earth.
天体物理学家根据地球与星系的距离计算了星系的年龄。