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
Hello.
喂。
I wonder if it's a real diamond.
它可是地道的钻石呀。
Really? I thought you were from the States.
真的吗？我还以为你是美国人呢。