With a shock at my heart, I smiled back.

我心里一惊，也对他笑了笑。

youdao

A woman died from a heart attack caused by shock after waking up to discover she had been declared dead - and was being prepared for burial.

一个女子苏醒后发现人们以为她已经死了，正在为她准备葬礼——结果她因为惊吓过度，心脏发作死去。

youdao

ICDs are considerably more advanced and complex than pacemakers and use small computers to sense electrical activity, monitor the heart and determine when and how to apply a therapeutic shock.

ICDs比心率调整器更先进更复杂，它可以利用小型计算机来感觉电流，对心脏进行监控以决定何时采取治疗性电击。

youdao

Some devices include a defibrillator, which gives a shock if the heart beats too fast.

VOA: special.2010.06.02

While they're sitting there thinking about painful shock it's making their heart beat faster, it's making their palms sweat, it's making them breathe harder maybe.

因为在等待痛击实验时,他们的心跳加速，手心冒汗，可能呼吸开始急促。

耶鲁公开课 - 心理学导论课程节选

Some pacemakers include a defibrillator, which gives a shock if the heart beats too fast.

VOA: special.2010.06.29

The automated external defibrillator is a portable, self-contained machine that can shock the heart back into rhythm.

CNN: Cardiac-arrest victims' parents push for school defibrillators

If it detects a severe arrhythmia, the device is designed to shock the heart, causing it to revert to normal rhythm.

CNN: Cheney goes home after heart device implant

There was no water there but they still didn't shock her heart.

BBC