Delabialization
唇化消失, 非唇化
🗣️ 情景例句
Hey, go to the doctor. That cough sounds bad.
嘿，去看看医生吧，听起来你咳嗽得挺厉害的。
Would you hold the line, please, I will find out his number for you.
请你不要挂断，我替你找他的号码。
He has retired from political life and gone to live abroad!
他已经退出了政界去国外了！”