Diphthongize
vt. (使)二合元音化, 复元音化
🗣️ 情景例句
We'll tell you the big surprise.
我来告诉你们这个大惊喜。
As you travel westward,does the land get higher?
当你向西旅行，陆地变得更高？
Take it easy.
别紧张。