文字则是由一种特定的方式发出的语音来组成。
Words are made by combining certain vocal sounds in a particular way.
语音学是研究在言语中人类嗓音所能发出的语音，而音系学则是研究这些语音中能形成语音和意义的一个子集。
Phonetics is the study of speech sounds that human voice is capable of creating whereas phonology is the study of a subset of those sounds that constitute language and meaning.
语音学是研究在言语中人类嗓音所能发出的语音，而音系学则是研究这些语音中能形成语言和意义的一个子集。
Phonetics is the study of speech sounds that the human voice is capable of creating whereas phonology is the study of a subset of those sounds that constitute language and meaning.
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