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
Do you feel stronger?
你感到强壮一些了吗？
You must reap what you have sown.
种瓜得瓜，种豆得豆。
They dare not tell the truth.
他们不敢说实话。