Fauchard's disease
[医] 福夏尔氏病, 牙周炎
🧩 词语组成解析
🗣️ 情景例句
I'd like a side order of onion rings, please.
我想再要一个洋葱圈。
He is attending a morning intensive course four hours a day, six days a week.
他每周六早晨都上一门4小时的速成课。
Is this a book?
这是一本书吗？