recording board

例句：

1. 1. This is the recording board where we record our lessons.
   这是我们的录音板，我们在这里记录我们的课程。
2. 2. The teacher used the recording board to play a recording of the lesson.
   老师使用录音板播放了课程的录音。
3. 3. The students were using the recording board to practice their pronunciation.
   学生们正在使用录音板练习他们的发音。