valve with two cusps; situated between the left atrium and the left ventricle
例句
用作名词 (n.)
Mitral regurgitation is one of the most serious heart diseases. 二尖瓣返流是心脏疾病最主要的发病之一。
Degenerative mitral valve disease is a common cause of congestive heart failure in dogs, especially small, older dogs. 退行性二尖瓣病变是引起犬只充血性心力衰竭的常见病因,尤其是小型犬和老年犬。