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
What do you want to study?
你想学什么？
Waste not, want not.
俭以防匮。
I'm sorry, Lucy.I'm afraid that I can't get up.
对不起，露西，恐怕我站不起来。