Exactly. If they had the choice to opt out, they would opt out in a heartbeat.

没错。如果他们可以选择退课，那他们可会马上退选这门课。

Well, your contraption has changed my heartbeat. It changed my rhythm. I can't play.

而你们的设备改变了我的心跳。它改变了我的节奏，我不了。

Vocal performances impose set breathing patterns, which regulate and synchronize heartbeats.

声乐表演控制呼吸方式，呼吸方式则控制心跳。

The nervous system regulates your heartbeat and digestion.

神经系统调节你的心跳和消化。

Horror increases your heartbeat, makes you feel more alive.

恐怖会使你心跳加速 让你感觉更有活力。

This constant rising and falling of solar energy levels thrums  through our planetary system, rising and falling like a heartbeat.

太阳水平的不断上升和下贯穿我们的行星系统，像心跳一样上升和下。

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

D代表除颤，这通过提供电击以重新启动心跳。

An LED display attached to the hand will show the patient's data, like a heartbeat.

连接在手上的LED显示屏将显示病人的数据，比如心跳。

And in the case of exercise, it's not just a matter of “working” or “not working” – in addition to keeping you healthy, getting your heartbeat elevated on a regular basis can also make you a better student.

就锻炼而言，这不“”或“不”的问题——除了让你保持健康，定期提高你的心跳也让你成为更好的学生。

Each heartbeat can be broken into systole and diastole.

每次心跳都可被分解为收缩和舒张。

A human heartbeat is regulated by electrical charges that signal muscles to contract and release.

人类的心跳由电荷调节的，它向肌肉发出收缩和释放的信号。

Check to see if the victim is breathing and has a heartbeat.

检查受害者否有呼吸和心跳。

But it's relentless frustrating tourists in places where tourism is the heartbeat of the economy.

但在那些以旅游业为经济支柱的地方，这种情况让游客们感到无尽的沮丧。

Now, they didn't know if the muscle would take, so after the surgery, every hour, the doctors and nurses would come in, unwrap the wound, apply a gel and search for a heartbeat in the muscle.

他们不知道肌肉否承受，所以，手术后，每个小时，医生和护理师就会进来，拆开伤口的包扎，涂上一种胶，寻找肌肉的心跳。

My heartbeat has accelerated, and my cheeks are heating up again.

我的心跳加速，我的脸再次升温。

We say something happens in the blink of an eye or in a heartbeat.

比如" 眨眼间或心跳的瞬间发生某事（in the blink of an eye or in a heartbeat）" 。

One of them, for example, is they can detect an irregular heartbeat.

例如，其中一个就它们检测出不正常的心率。

Olive wrote of those first few days, when the grief was fresh and they were still coming to terms with the fact that everything had changed in a heartbeat.

奥莉薇写到了最初的几天，当时悲伤还在，她们还在接受一个事实，那就一切都在一瞬间改变了。

The name comes from the Italian word for heartbeats.

这个名字来自意大利语，意思心跳。

As he said, " It's all about heartbeat."

正如他所言，“都心跳时刻。”