Pericoronal flap
[医] 冠周片
🧩 词语组成解析
[医] 冠周的
flap
[flæp]
n. 扁平物;[航] 襟翼;拍打，拍打声;〈口〉不安，恐慌;
v. 上下或左右移动、摆动;轻拍;振翅而飞;
🗣️ 情景例句
I would like a haircut, please.
麻烦你，我想理发。
You cannot make a silk purse out of a sow's ear.
猪耳朵做不成丝钱包；巧妇难为无米之炊。
Hello! Could I speak to the headmaster, please?
您好！我能和校长通话吗？