Umbilicus
n. 脐, 中心\\n[医] 脐
📖 牛津释义
umbilicus
n
(anatomy 解) navel 脐.
🗣️ 情景例句
I've got extra time on my hands.
我有过多空闲时间。
Teaching others teaches yourself.
教学相长。
I was late for work yesterday，
我昨天上班迟到了。