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
It hung over Susan's crib.
Susan的小床也曾有过。
Can you keep an eye on my bag?
帮我看一下包好吗？
Mr Green is from England.
格林先生从英国来。