英语新闻听写 未来心脏能否具备自我修复功能?

Researchers now have a better understanding of why heart muscle lacks the ability to fix itself. And according to UPI, that newfound insight may lead to more effective ways of treating heart disease. A study by Baylor College of Medicine and the Texas Heart Institute revealed a previously¹ unknown connection between processes that keeps the heart from repairing itself.

研究人员现在对心肌为何没有自我修复能力有了更好的了解。根据UPI，这项新发现可能会引出治疗心脏病更有效的方法。美国贝勒医学院和德州心脏研究所的一项研究揭露了此前未知的、防止心脏进行自我修复的过程之间的联系。

According to the Centers for Disease Control and Prevention, heart disease is the leading cause of death in the United States. That's because the heart muscle is one of the least renewable tissues in the body. Researchers used genetically² engineered mice to study two distinct heart pathways.

根据疾病防控中心，心脏病是美国疾病死亡的主要原因。那是因为心肌是人体最不可再生的组织之一。研究人员利用基因工程老鼠来研究两种不同的心脏路径。

1 previously   

adv.以前，先前（地）

参考例句：

• The bicycle tyre blew out at a previously damaged point.自行车胎在以前损坏过的地方又爆开了。
• Let me digress for a moment and explain what had happened previously.让我岔开一会儿，解释原先发生了什么。

2 genetically   

adv.遗传上

参考例句：

• All the bees in the colony are genetically related. 同一群体的蜜蜂都有亲缘关系。
• Genetically modified foods have already arrived on American dinner tables. 经基因改造加工过的食物已端上了美国人的餐桌。 来自英汉非文学 - 生命科学 - 基因与食物