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

D代表除颤，这是通过提供以重新启动心跳。

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

然可以确定，他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.

这种情况可能是致命，它可能需要一个强大传递到心脏，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.

这种情况在1960年开始发生变化，当时被称为心肺复苏术（简称 CPR）口对口人工吸、胸部按压和体外除颤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，然是早期心肺复苏术，重点是高质量胸外按压，当然，还有除颤，然是心脏术护理和康复。