劍橋詞典a narrowing of the heart valve that supplies the aorta (= the body's largest artery ), reducing the blood flow to the aorta 主動(dòng)脈瓣狹窄 He had been suffering from aortic stenosis and died of heart failure in his sleep . 他主動(dòng)脈瓣狹窄，在睡夢(mèng)中死於心髒衰竭。 返回 aortic stenosis