Hi guys, Welcome to the Advanced Video Search Engine, and you are watching 【汉语课堂】61 普通话发音技巧 | 打开口腔 / 一招让你的声音变饱满. That video is uploaded by 衍之汉语课堂 at 2021-06-26T17:12:39-07:00. We are promoting this video only for entertainment and educational purpose only. So, I hope you like & enjoy it. [jUaRlL8d_5g]