片语
study on phonetic system音系研究
Chinese Phonetic System汉语拼音方案
Phonetic English System KK音标的意思
phonetic consulting system语音咨询系统
viewable phonetic training system可视化语音训练系统
phonetic consultation system语音咨询系统
Phonetic teaching system语音教学系统
auto-phonetic outbound system自动语音外呼系统
phoning phonetic service system电话语音服务系统