片语
musical note音符;律音
phonetic symbol recognition音标识别
soundmark音标
About Phonetic Symbol关于音标
Review of phonetic symbol复习音标
phonetic notation symbol注音符号
Phonetic Symbol Demo音标口型
phonetic symbol teaching音标教学
Phonetic Symbol Practice音标拼读练习
international phonetic symbol国际音标
Phonetic Symbol Guide语音符号指南