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《方言》：汉语方言的实验语音学研究旨趣（中国社会科学院语言研究所：胡方）

Part 1 The importance of phonetic study 1)Phonetics is the science of speech sounds. It deals with the sound system of a language. A language consists of three important elements, namely, speech sounds, vocabulary and grammar. Speech sound is the material form on which word and grammar rely for existence. Divorced from speech sound, word and grammar are non-existent. So the first

Speech sounds seldom occur in isolation. They are nearly always joined together to form words and groups of words. In connected speech, sounds, under the influence of their neighbors,are replaced by other sounds. Sometimes two neighboring sounds influence each other and are replaced by third sound which is different from both the original sounds