非母语语音识别
nonnative speech recognition
汉语语音变换
Chinese speech conversion
汉语语音检索
Chinese speech retrieval
Chinese spoken term detection
汉语语音清晰度
chinese intelligibility
Chinese speech intelligibility
汉语语音识别
mandarin speech recognition
Recognition of Chinese Speech
互联网英语语音聊天室
internet english voice chat room
英语语音教学法
English pronunciation teaching method
英语语音习得
English phonetic acquisition