名词
中文翻译：节拍器指示器同义词
同义词：
['beatometer', 'metronome']
例句：
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1. The music teacher used a beat indicator to help the students learn to read rhythms.
音乐老师使用节拍器帮助学生学习阅读节奏。
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2. During the competition, the judges used a beat indicator to time the performances.
比赛期间，评委们使用节拍器来计时表演。
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3. The dancers were instructed to use a beat indicator to keep their steps in sync with the music.
舞者们被指导使用节拍器来与音乐保持同步。