Precardinal veins
[医] 前主静脉(胚)
🧩 词语组成解析
[医] 前主静脉的(胚)
n. 纹理；静脉（vein的复数）
🗣️ 情景例句
She's looking for a part time job.
她在寻找兼职工作。
The board won't approve of the budget for this year's expenditures.
会议上将不会承认本年度的支出预算。
It's seven thirty!
七点半了！