?括约肌
... 胃 stomach 括约肌 sphincter; sphincter muscle; ... 功能 function ...
瞳孔括约肌
鼻咽括约肌
Frequent heartburn or acid reflux are symptoms of a condition called GERD, or gastroesophageal reflux disease, which occurs when a sphincter muscle in the lower esophagus stops working properly.
WSJ: New Surgical Option for Heartburn
英汉双解词典包含3185865条英汉词条,基本涵盖了全部常用单词的翻译及用法,是英语学习的有利工具。