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
His appearance is impressive.
他的外表给人印象深刻。
This part of the country is very heavily populated.
这个国家这一部分人口很密集。
Could you direct me to the station, please?
请问到车站怎么走？