Echocardiographic study revealed marked mitral regurgitation with a large vegetation on the atrial side of the anterior leaflet of the mitral valve.是什么意思_Echocardiographic study revealed marked mitral regurgitation with a large vegetation on the atrial side of the anterior leaflet of the mitral valve.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句