You can never keep a heart that persists in leaving.

你永远留不住执意要离开的心。

But we'll keep the more anatomical heart for reference.

不过我们也把解剖版心脏放左上作参考。

Subjects have to pedal on the exercise bike and keep their heart rate up.

受试者必须踏上健身单车并保持心率。

I can't stop, I got to keep my heart rate up.

我不能停，需要保持很高的心率。

Similarly well-designed workouts might keep hearts both in shape—and in the right shape.

相似的锻炼也许也可以让心脏保持正常的形状。

Backus had already gone through a lengthy operation to keep his heart beating normally.

为了保持心脏正常跳动，巴克斯已经做了一次漫长的手术。

We have implants to keep heart beats steady, and steel rods to mimic bones.

我们有保持心脏稳定跳动的植入物和模仿骨骼的钢棒。

See if you can be light on your feet, and keep your heart lifted.

看看你能不能脚步轻盈，保持心情愉悦。

Scientists hope to discover an exercise routine that could keep heart strong to counteract this.

科学家们希望找到一种可以保持心脏强健的日常运动来抵消这种影响。

Part of what keeps your heart under control is your parasympathetic nervous system.

保证心脏处于可控状态的部分原因是你的副交感神经系统。

Then they put the heart in ice. This helps to keep the heart in a good condition.

然后他们将心脏放入冰块中。这有助于使心脏保持良好的状态。

He placed an emphasis on constant movement and keeping heart rates in an elevated zone during the entire period.

他强调在整个过程中要不断地运动，并保持较高的心率。

So, for example, washing your hands can keep infections at bay, or exercising can keep heart disease at bay.

因此，例如，洗手可以预防感染，锻炼可以预防心脏病。

Their brain is dead - there is no chance of them recovering. But a machine keeps their heart beating.

他们的大脑可已经死亡，没有机会恢复。但是机器可以让他们的心脏保持跳动。

That's why you need your parasympathetic system to keep your heart from racing like a rabbit's.

这就是为什么你需要你的副交感神经系统来防止你的心脏像兔子一样跳动。

You have helped to keep our hearts whole!

你帮助我们保持了完整的心！

And kept his heart from grief and rue?

让他的心远离悲伤和悔恨？

By providing a small electrical jolt at the right moment, they can keep a heart working at the appropriate pace.

通过在恰当时候提供一小撮电流震动，它们可以让心脏以适当的速度保持工作。

Try to keep your heart from pounding out of your chest.

试着让你的心脏不要跳出胸膛。

So we now know that a baboon can keep a pig heart alive.

所以我们现在知道狒狒可以让猪的心脏保持活力。