Diphthongizing
vt. 使双重元音化；读作双元音\\nvi. 变为双元音
🗣️ 情景例句
Try this. It's size eight.
试试这一件。尺码是八号。
All right, I will be waiting for you .
好的，我会等候你的。
She teaches foreign students Chinese.
她教外国学生汉语。