名词
中文翻译：天体
同义词：
['planet', 'celestial body']
例句：
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1. The discovery of a new planet has sparked excitement among scientists.
发现一个新行星让科学家兴奋不已。
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2. The celestial body is located in the constellation of Orion.
这个天体位于猎户座星座。
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3. Astronomy is the study of celestial bodies, including planets and stars.
天文学是研究天体，包括行星和恒星的学科。