Pericystium
[医] 囊周膜
🗣️ 情景例句
The mailman just dropped some mail in our box, Grandpa.
邮差刚刚塞进一些信件在我们的信箱， 爷爷。
I assume you've decided against buying a new car.
我假设你决定不买一辆新汽车。
Knock it off.
少来这一套。