劍橋詞典the process in which tissue dies because something has blocked its blood supply , or an occasion on which this happens （組織）梗塞 A myocardial infarction happens when the blood flow to a part of the heart is blocked for a long enough time that part of the heart muscle is damaged . 當(dāng)流往部分心肌的血液被阻時(shí)間過長(zhǎng)，心肌因此受損時(shí)，就會(huì)發(fā)生心肌梗塞。 返回 infarction