Sphincter
n. 括約肌\\n[醫] 括約肌
?? 牛津釋義
sphincter
n
(fml 文) ring of muscle that surrounds an opening in the body and can contract to close it 括約肌
the anal sphincter 肛門括約肌.
??? 情景例句
I am also glad to be here.
我很高興來這里 。
Contact me by telephone.
電話跟我聯絡。
Seeing a cake flying through the air, a lorry driver who was drawing up alongside the car, pulled up all of a sudden.
此時，一輛卡車正好從后邊開到那輛汽車邊上，司機看見一塊蛋糕從天而降，緊急剎車。