Retaineddeciduous teeth
[医] 滞留乳牙
🧩 词语组成解析
teeth
[ti:θ]
n. 牙( tooth的名词复数 );齿;齿状部份;致力于（ 有难度的事）;tooth的复数形式;（组织、法律等）强大有效;不顾危险（或反对等）;
🗣️ 情景例句
I have just begun to learn and my serve isn't very good.
我刚刚开始学习，发球不太好。
He has a piece of cake.
他有一块蛋糕。
I'm sorry, these 2 books are 3 days overdue.
小姐，对不起，这两本书已经过期3天了。