D is for Defibrillation, which is about delivering a shock to restart the heartbeat.

D代表除颤，是通过提供电击以重新启动心跳。

And then we can determine, do they need defibrillation or do they need something called synchronized cardioversion?

然后我们可以确定，他们需要除颤还是同步复律？

S for shout for help, A for Airway, B for Breathing, C for Circulation and D for Defibrillation.

S代表喊求助，A代表气道，B代表吸，C代表血液循环，D代表除颤。

This condition can be fatal, and it may require a strong electrical shock delivered to the heart, known as defibrillation.

情况可能是致命的，它可能需要一个强大的电击传递到心脏，即除颤。

That began to change in 1960, when the combination of mouth-to-mouth ventilation, chest compressions and external defibrillation known as cardiopulmonary resuscitation, or CPR, was formalised.

情况在1960年开始发生变化，当时被称为心肺复苏术（简称 CPR）的口对口人工吸、胸部按压和体外除颤的组合被正式确定下来。

Two is to activate the emergency response system followed by early CPR with an emphasis on high-quality chest compressions, of course, defibrillation, and then followed with post-cardiac care and recovery.

第二是启动应急反应系统，然后是早期心肺复苏术，重点是高质量的胸外按压，当然，还有除颤，然后是心脏术后护理和康复。