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
but I knew engineering was not for me.
但我知道工程对我不合适。
I can't tell you how sorry I am.
我不知道我该怎样道歉。
Oh dear! It's very warm in this clasroom, isn't?
天哪，这屋里真暖和，不是吗？