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
Well, let me see.
哦，让我想想。
Graduation is often the last moment of childhood.
毕业往往意味着儿童时期的结束。
I'm very pleased with your work.
我对你的工作非常满意。