spodogram

例句：

1. 1. The teacher used a podogram to illustrate the concept of phonics.
   老师使用一个音标符号来说明语音学的概念。
2. 2. The student was confused by the complexities of the podogram system.
   学生对音标符号系统感到困惑。
3. 3. The researcher found that the use of podograms improved students' reading comprehension.
   研究者发现，使用音标符号提高了学生的阅读理解能力。