Parodontitis
牙周炎
🗣️ 情景例句
Like I always said, you look just like Grandma.
我老是说你真像你奶奶。
One moment, please, and I'll find out what is available.
请等一等，我来查一查有什么班机。
Ducks know how to swim when they are born.
鸭子天生会游泳