syntonic jar

例句：

1. 1. The teacher used the syntonic jar to help students pronounce words correctly.
   老师使用同音词的容器帮助学生正确发音。
2. 2.The linguist discovered that the syntonic jar could be a useful tool for teaching phonetics.
   语言学家发现同音词的容器可以作为教授语音学的一个有用工具。
3. 3. The student was puzzled by the jar's ability to store and recall phonetic information.
   学生对同音词的容器存储和回忆语音信息的能力感到困惑。