观察上古汉语的谐声关系,比较现代广西粤方言、汉语的亲属语言相互之间的对应关系,参考汉越语的材料;笔者认为,上古汉语确实存在着*st-类型复声母。这些声母与藏缅语族同源,这可证藏缅语族(如广西的彝语)不属南亚语系而与汉语有亲属同源关系。*st-类型复声母主要是中古“精”组字特别是“邪”母字,也有是照系的。本文涉及的复声母一股为“精”组字。 Observe the homophonic relationship of the ancient Chinese, compare the corresponding relationship between the modern Cantonese dialects and relatives in the languages ​​of modern Guangdong, and refer to the materials of the Chinese and Vietnamese languages. The author believes that the ancient Chinese does exist the * st-type complex initials. These consonants are homologous with the Tibeto-Burman languages, which can prove that the Burmese ethnic groups (such as Yi in Guangxi) are not of South Asian origin and have homologous relatives with Chinese. * st-type polyphonic mother is mainly medieval “fine” group of words, especially “evil” mother word, but also according to the Department. This article deals with the sound of a “sound” group of words.