Warning: file_put_contents(): Only 0 of 7103 bytes written, possibly out of free disk space in /home/www/wwwroot/zidian/001308.com/index.php on line 55 mitral valve英英字典_mitral valve剑桥英语解释_mitral valve柯林斯英文解释_零食美味英文词典
1. N the valve between the left atrium and the left ventricle of the heart, consisting of two membranous flaps, that prevents regurgitation of blood into the atrium 二尖瓣 (Also called bicuspid valve)