1·One begins a foreign language by learning the speech sounds.
学习外语， 先从语音入手。
—— 《新英汉大辞典》
2·The speech sounds of all languages are gradually but constantly changing.
各种语言的语音总在不断变迁。
—— 《新英汉大辞典》
3·Phonetics deals with speech sounds.
语音学是研究语言声音的。
4·Speech sounds are the physical substance of language.
语音是语言客观存在的物质形式。
5·Phonetics has to do with the production of speech sounds.
其中音位学与语音的功能有关而语音学与语音的产生有关。
6·Speech sounds are generally divided into vowels and consonants.
英语语音通常分成元音和辅音。
7·people who cannot make speech sounds, or cannot make them clearly;
无法发音或发音不清楚的患者；
8·The letters of the alphabet were designed to represent speech sounds.
字母表中的字母是用来表示语音的。
9·The speech sounds are phonetics and phonetic. And they are meaningful.
语音既有语音性质又有语言学意义。
10·How do the three branches of phonetics contribute to the study of speech sounds?
语音学的三个分支对语音学的研究有什么贡献？