“语音”造句

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 but constantly changing.