Circulus umbilicalis
[医] 脐动脉丛
🧩 词语组成解析
[医] 环, 圈
🗣️ 情景例句
Where do I sign this?
我签在哪里？
Do you have your driver's license?
你有驾驶执照吗？
I can't get home so early, Dad!
这么早我到不了家，爸爸！