Diphthongize
vt. (使)二合元音化, 复元音化
🗣️ 情景例句
It is already.
现在已经很兴奋了
What were you doing at about 4 o'clock yesterday afternoon?
你昨天下午在大约4点钟正在做什么？
Is it Albert Einstein?
是阿尔伯特·爱因斯坦吗？