O'befirne's valves
[医] 奥贝恩氏瓣(直肠结肠襞,直肠括约肌)
🧩 词语组成解析
n. 阀门；真空管；瓣膜（valve的复数）
🗣️ 情景例句
What are your major and minor subjects?
你主修和副修什么科目？
We invited two guests to dinner,but they didn't come.
我们邀请了2个客人去吃晚饭，但是他们没来。
I looked out of the window.It was dark outside.
我望望窗外，外面一片昏暗。