名词
中文翻译：天文钟
同义词：
['astronomical clock', 'celestial timepiece', 'celestial timer']
例句：
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1. The celestial clock on the wall is ticking away the hours.
墙上的天文钟正在滴答作响。
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2. The astronomers used a celestial clock to measure the time of their observations.
天文学家使用一个天文钟来测量他们观测的时间。
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3. The celestial clock was an accurate representation of the stars' movement.
这个天文钟准确地反映了星星的运动。