Annulus
n. 环, 环形物, 体环\\n[化] 环形缝; 环隙
🏥 医学释义
环形物，环形套管
🗣️ 情景例句
But, Daddy, I thought ...
但是， 爸爸 ，我想……
It seems he's very fond of you.
看起来他好像很喜欢你。
That's an English car!
那才是一辆英国产的小汽车！