标签：hearts 相关文章
Scientists Regrow Tissue Killed During Heart Attack U.S. scientists have done what was once considered science fiction - regrown heart muscle to replace tissue that was killed off in a heart attack. It's the latest advance in the field of regenerativ
发表于:2019-01-14 / 阅读(78) / 评论(0)
VOA标准英语2012年(二月)
VOA标准英语2012年(二月)