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
She says you're quite a man.
她说你是个了不起的人。
It's no trouble at all. I'll carry this suitcase for you.
一点也不麻烦，我来替你提这只箱子。
The guest who arrives half an hour too soon is the greatest nuisance.
客人提前半小时到达是令人讨厌的。