Diphthongizes
vt. 使双重元音化；读作双元音\\nvi. 变为双元音
🗣️ 情景例句
I major in English and minor in French.
我主修英语，副修法语。
In secondary school, children get more advanced knowledge.
在中学，孩子们得到更高深的知识。
Annie considered this was just the kind of demanding job she wanted.
安妮认为，这正是她想要的难度很大的工作。