Annulus umbilicalis
[医] 脐环
🧩 词语组成解析
n. 环, 环形物, 体环\\n[化] 环形缝; 环隙
🗣️ 情景例句
That's the last straw!
真是太过分了！
Which one is heavier?
哪一个是较重的？
The glasses keep their eyes safe.
眼镜可以使眼睛不受伤害。