翘舌音声母有哪些

翘舌音的声母有:zh、ch、sh、r1、zh发音方法:发音时,舌尖上翘,抵住硬腭前部,软膊上升,堵塞鼻腔通路,声带不颤动,较弱的气流把舌尖的阻碍冲开一道窄缝,并...