Postcardinal veins
[医] 后主静脉(胚)
🧩 词语组成解析
[医] 后主静脉的
n. 纹理；静脉（vein的复数）
🗣️ 情景例句
By this time next week we shall be in London.
下星期的这个时间我们将在伦敦。
Life is a battle from cradle to grave.
人生是一场从生到死的战斗。
I would like to wash the clothes for you.
我愿意帮你洗这些衣服。