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
Stop being so moody.
不要这么喜怒无常。
A man is not a horse because he was born in a stable.
人并不因为生在马厩里就成了马。
Which part of England do you come from?
你从英国的什么地方来？