Festmeter

例句：

1. 1. The musician uses a metronome to keep the tempo consistent.
   这位音乐家使用节拍器来保持节奏一致。
2. 2.The teacher used a metronome to help the students learn their rhythms.
   老师使用节拍器帮助学生学习他们的韵律。
3. 3.The dancers practiced their routines using a metronome to ensure they were on time.
   舞者们使用节拍器练习他们的节目，以确保他们准时表演。