Circulus umbilicalis
[医] 脐动脉丛
🧩 词语组成解析
[医] 环, 圈
🗣️ 情景例句
He's a pretty good bloke and he seems very friendly.
他是一个很不错的家伙，看起来也很友善。
Do flying saucers really exist?
飞碟真的存在吗？
The bridge is so long that the shape of the earth had to be taken into account by its designer.
由于桥身太长，设计者不得不考虑了地表的形状。