Diphthongoidal
准二合元音的
🗣️ 情景例句
Wow, dad is cooking, this must be a special occasion.
哇， 爸爸在做饭， 这肯定是一个特别的场合。
Do you think there is something wrong with the contract?
你认为合同有问题吗？
I'm not sure that we can wait that long.
我不知道我们是否能够等那么久。