“语音”的英语？

我想语音拼写可能有助于发音。I thought a phonetic spelling might aid in pronunciation.我们系已经聘请了一位外籍老师作为语音顾问.Our department has engaged a foreign teacher as phonetic adviser.各种语言的语音总在不断变迁.The speech sounds of all languages are gradually ...

“语音”的拼音为：yǔ yīn...