Circular flap
[医] 环形瓣
🧩 词语组成解析
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
It was nothing.
这不算什么。
A thief knows a thief as a wolf knows a wolf.
贼了解贼，正如狼了解狼。
The damage was caused by external forces.
损害是由外力引起的。