Short periods of sleep may help our brains work better, or so says a recent study on napping.

最近，一项有关睡眠的调查表明，短暂睡眠有助于大脑运转。

And it's only a short period of time.

而且仅仅用了很短的时间就达到了这样的效果。

Studies have shown that short periods of stress can actually bolster cognitive functioning.

研究表明，短期的压力实际上可以增强认知功能。

After a short period, a different doctor examined Isabelle.

不久之后，另一名医生给伊莎贝尔做了检查。

But they just happen for short periods of time.

但这些机制的发生时间很短。

The scattered disk is the source of short period comets.

分散盘是短周期彗星的来源之处。

All of this happening in a very short period of time.

所有这些都发生在很短的时间内。

We can do a lot in a short period of time.

我们在一段很短时间的时间内就能做很多事情。

You can do this for the whole year or a short period.

你可以写年计划，或者短期计划也行。

Use high heat and cook for a short period of time.

用大火煮一小段时间。

A lot of sounds in a very short period of time.

在很短的时间内发出很多声音。

Now we have over 30 million cars in such a short period.

到现在这么短的时间里，私家车的数量已经超过了3000万。

Even short periods of exposure to this type of weather can be dangerous.

即使短时间暴露在这种天气下也是危险的。

What if I require a loan for a short period of time?

假如我需要短期贷款，怎么办呐？

That's where you get the opportunity to study full-time for short periods.

你将有机会在短时间内完成全日制的课程。

It was the second burglary in the area in a relatively short period.

这是该地区第二起入室盗窃案。

They discovered humans sleep for shorter periods of time compared to other animals.

最后发现，与其它动物的睡眠时间相比，人类的睡眠时间要少很多。

I suggest again a short period of refreshment.You are both doing well.

我再次建议短暂的充电。你们俩都做得很好。

A short period of time. Not enough to cover everything they could have said.

一段很短的时间。不足以涵盖他们可以说的一切。

Spain will begin permitting children out of their homes for short periods next Monday.

西班牙将从下周一开始允许儿童短时间外出。