Umbilicus
n. 脐, 中心\\n[医] 脐
📖 牛津释义
umbilicus
n
(anatomy 解) navel 脐.
🗣️ 情景例句
Be prepared to discuss details and be ready to answer questions.
应随时准备好讨论细节和回答对方的疑问。
His friend was injured in an airplane crash.
他的朋友在飞机碰撞中受伤。
it must be known to any kind of radio astronomer in the universe.
这个频率是宇宙中任何射电天文学家都应该熟悉的。