Diphthongizing
vt. 使双重元音化；读作双元音\\nvi. 变为双元音
🗣️ 情景例句
But first you have to smile.
但首先你得笑一笑。
There it is.
门在那儿。
Lucy ran home at once. Her mother saw her when she arrived.
露西马上跑回家。到家时母亲看见了她。