Umbilical veins
[医] 脐静脉, 尿囊静脉
🧩 词语组成解析
a. 脐带的, 脐的, 近脐的, 关系密切的\\n[医] 脐的
n. 纹理；静脉（vein的复数）
🗣️ 情景例句
Hi. How was lunch?
嗨 。午餐怎么样？
I'll call the roll before class.
课前我要点名。
The man who had fixed up the air-line was also questioned.
安装供气管的那位工人也被提问。