1. The mitral valve is located between the left atrium and left ventricle of the heart.
(米特勒瓣位于心脏的左心房和左心室之间。)
2. Mitral valve prolapse is a common heart valve disorder.
(乳腺口瓣脱垂是一种常见的心脏瓣膜疾病。)
3. The patient is undergoing mitral valve repair surgery.
(患者正在接受矫正呼吸训练手术。)