diphthong
n
union of two vowel sounds or vowel letters, eg the sounds in pipe , the letters ou in doubt 二合元音, 复合元音, 双元音(如pipe 中的 音); 复合元音字母(如doubt中的ou). Cf 参看 monophthong.
🗣️ 情景例句
that Grandpa Philip bought for him.
祖父Philip给他买的。
Do you have a passport?
你有护照吗?
There's no time! laughed Mother.Here are the twins.