名词
中文翻译：Unknown
同义词：
['RR Lyrae star', 'RR Lyrae variable star例句：1. The RR Lyrae star is a famous object in the night sky.（RR Lyrae星是夜空中一个著名的天体。）']
例句：
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1. The RR Lyrae star is a famous object in the night sky.
RR Lyrae星是夜空中一个著名的天体。
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2. The RR Lyrae star has been studied for decades to understand its behavior.
RR Lyrae星经过几十年的研究，以了解其行为。
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3. The RR Lyrae star was discovered by astronomers in 1978.
RR Lyrae星于1978年被天文学家发现。