paceboard

例句：

1. 1.The teacher used the paceboard to helpthe students learn their rhythms.
   老师使用节拍器帮助学生学习他们的节拍。
2. 2. The dancers practiced their routines on the paceboard.
   舞者们在节拍板上练习他们的舞蹈。
3. 3. The musicianplayed a piece on the paceboard toset the tempo for the performance.
   音乐家在节拍板上演奏了一段音乐，为表演设定了节奏。