Vieussen's annulus
[医] 维厄桑氏环
🧩 词语组成解析
n. 环, 环形物, 体环\\n[化] 环形缝; 环隙
🗣️ 情景例句
Thanks a lot.
十分感谢。
One man makes a chair and another man sits in it.
坐享其成。
You are walking too fast. I can't keep up with you.
你走得太快，我跟不上。