With a shock at my heart, I smiled back.

我心里一惊，也对他笑了笑。

youdao

And in some patients we test the defibrillator by causing the heart to go into a life-threatening rhythm, to make sure the defibrillator can recognize it and shock them out of it.

而且对有些患者我们还要诱发其产生危及生命的心律失常来测试，以保证除颤器能正确识别并完成对心脏的去颤。

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

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