Sphincter
n. 括约肌\\n[医] 括约肌
📖 牛津释义
sphincter
n
(fml 文) ring of muscle that surrounds an opening in the body and can contract to close it 括约肌
the anal sphincter 肛门括约肌.
🗣️ 情景例句
You really must have your wits about your when dealing with such people.
跟这类人打交道，你必须格外警觉。
Please show me the menu.
请把菜单给我。
Yes, it is. Thanks!
对，是我的。谢谢！