由这种音变现象在山东地区的地域流变情况可见，知系合口字的唇齿化有可能首先发生于擦音声母。

The shifted of the sound changes phenomena in Shandong district proves that Round-mouth characters of Zhi-system read in labiodental firstly occur in fricative.

youdao

古代汉语的声母曾经影响了现代汉语的语音、语汇和汉字形声字。

Ancient initial consonants have influence on modern pronunciation, vocabulary and Chinese characters.

youdao

声旁提供汉字读音的部分信息，如声调不同字或声母不同字；

Characters in which the phonetic provides partial information for pronunciation of the whole character, like tone-different character (onset and rime) and onset-different character (rime).

youdao

声旁提供汉字读音的部分信息，如声调不同字或声母不同字；

Characters in which the phonetic provides partial information for pronunciation of the whole character, like tone-different character (onset and rime) and onset-different character (rime).

youdao