Allantoic veins
[医] 尿囊静脉, 脐静脉
🧩 词语组成解析
a. [动]尿囊的,尿囊内的,有尿囊的
n. 纹理；静脉（vein的复数）
🗣️ 情景例句
She can't sit around and do nothing.
她总不能闲坐着无所事事呀。
I don't like the conclusion of the play.
我不喜欢这出戏的结局。
Is this your first visit to our showroom.
您是第一次到我们展示室来的吧。