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
We had a good day.
我们今天玩得很开心。
They have been much too irresponsible for their high position.
他们虽身居要位，未免太缺乏责任感了。
I hope we meet again.
我希望我们能够再见面。