The best way to explain a Caucus-race is to have a Caucus-race!

解释热身赛跑最好的方式就是参加一次热身赛跑！

It's imperative to hold new testing skills by working fruitfully on your hand-eye coordination.

要想掌握考试的新技巧，就得成果斐然地练习手眼协调能力，必须有好的热身训练。

What we're doing here is I'm just doing jumps just to warm up the body.

我们现在要做的是，跳几次热热身。

But it was just the warm-up act.

但是这份工作只是热身。

Piano players warm-up with Scales and Arpeggios.

钢琴演奏者用音阶和琶音热身。

Like any muscle, your brain needs the right warm-up to maximize its potential.

就像任何肌肉一样，你的大脑需要适当的热身来最大限度地发挥它的潜力。

Then I warmed up, so to speak, and played better, and Jana played well.

后来我算是已经完成热身运动，所以打得比较好。杰娜也打得很好。

Now it is a warm-up, but first impressions count.

这是一个热身，但第一印象很重要。

However, Behm, says it is better if you warm up first.

然而，贝姆说最好先热身。

Once again, to warm up for things, to to practice in English class.

还是用来热身，要在英语课上练习的。

Onward and upward, good job. Way to go, good warm-up there.

腰挺起来，做的不错。就是这样，好好热身。

That means to prepare yourself for a difficult or intense activity by stretching.

热身指的是通过拉伸为自己做有难度或者高强度的活动做准备。

Right. So, before I start rock climbing, I make sure to warm up.

是。我在攀岩之前，我都要" 热身" （warm up）。

Okay, let's keep going, we're just warming up.

好的，让我们继续吧，刚刚只是热身呢。

Some looked at each other during this warm-up and others did not.

在这个热身过程中，一些人互相看着对方，另一些人则没有。

Because they're drawn to it, and not just to warm up.

因为它们被太阳吸引，而不只是为了热身。

This is the perfect place to warm up after an excursion.

这可是远足后热身的好地方。

Out on the field, battle lines are drawn and the teams warm up.

球场上在划线，各队热身。

It should start with an active warm-up that involves 5-10 minutes of walking or jogging.

（这种方式）应该从积极的热身开始，包括5-10分钟的步行或慢跑。

But, what does science tell us about stretching and " warming-up" ?

但是，关于伸展运动和“热身”，学告诉我们什么呢？