O'beirne's sphincter
[医] 奥贝恩氏括约肌(在结肠直肠连接部)
🧩 词语组成解析
n. 括约肌\\n[医] 括约肌
🗣️ 情景例句
That's great.
真棒！
Have you been listening?
你有没有在听啊？
They can have only five guesses.
他们只能猜五次。