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
She sure keeps busy.
她真的是忙个不停。
Who called a while ago?
刚才谁在打电话？
You can never turn the clock back.
时光不能倒流。