Odontogenesis imperfecta
[医] 牙生长不全
🧩 词语组成解析
牙发生
🗣️ 情景例句
Butter, nice and cold and hard.
牛油 新鲜又冷又硬。
A friend is never known till a man have need.
不到患难时，永远不能认识真正的朋友。
They lived there before they came to China.
在他们来中国前。