For a variety of reasons, something - such as a structural heart defect - causes the heart to beat out of control. This abnormal heart rhythm is known as ventricular fibrillation.
在这多种原因中，一些会导致心跳失常，比如结构性心脏缺陷，这种异常的心律被称作。
My own heart, which was pounding at twice the rhythm of his, skipped a beat.
我自己的心脏，能有他心跳节奏的两倍。
For instance, since the iPS-derived heart cells will beat in a dish, scientists should be able to detect which drugs alter the heart's rhythm.
例如，由于iPS的衍生心脏细胞可以在培养皿中搏动，科学家能以此检测改变心脏节律的药物。
应用推荐