Diphthongize
vt. (使)二合元音化, 复元音化
🗣️ 情景例句
The thieves stole all my money.
小偷偷了我所有的钱。
In college I majored in science, What was your major?
大学时我主修自然科学，你主修什么呢？
Good morning, teacher.
老师早上好！