The respiratory system includes the nose and lungs.

呼吸系统包括鼻子和肺。

All right, as a quick recap, the respiratory system facilitates gas-exchange.

得！快速回顾一下：呼吸系统主管气体交换。

Then we talked about medium term compensation for the respiratory system.

然后我们讨论了呼吸系统的中期补偿。

But the respiratory system can be interrupted by a variety of conditions.

但是该过程也会因多种因素中断。

To appreciate the value of ventilation, we need to understand how the respiratory system works.

要理解呼吸机的价值，我们需要了解呼吸系统是如何运作的。

We look at the respiratory systems... It's not like those of mammals at all.

我们观察其呼吸系统，与哺乳动物的相差很大。

MERS attacks the respiratory system. It's killed almost a third of those who've gotten it.

MERS攻击人的呼吸系统。这种病毒已经杀死了近三分之一感染它的人。

The most sort of effective way of these pathogens entering your body is through the respiratory system.

呼吸系统是这些病原体进入人体内的最有效途径。

But mechanical ventilators take over the process, getting oxygen into the body when the respiratory system cannot.

但是机械呼吸机替代了这一过程，在呼吸系统无法正常工作时让氧气进入身体。

MERS attacks the respiratory system, and symptoms include fever and cough and can progress to pneumonia and kidney failure.

MERS会攻击呼吸系统, 造成发烧和咳嗽, 进而发展为肺炎和肾功能衰竭。

They're part of the " respiratory system" .

它们是“呼吸系统” 的一部分。

The respiratory system has three major parts, the trachea, the lungs, and the diaphragm.

呼吸系统有气管、肺和横膈膜三个主要部分。

The respiratory system takes in oxygen from the air and expels carbon dioxide and water vapor.

空气进入口和鼻，穿过喉咙和气管。气管发出左右分支分别进入两肺，之后以超过20次的分支形成大量的肺泡。

Asthma affects the respiratory system, particularly the smaller airways, such as the bronchi and bronchioles.

哮喘会影响呼吸系统，尤其是较小的气道，例如支气管和细支气管。

Anatomically, the respiratory system can be divided into upper and lower sections.

在解剖学上，呼吸系统可以被分为上和下两部分。

Now, let's discuss the respiratory system in terms of functional zones.

现在，让我们就功能区来讨论呼吸系统。

In fact, a real powerful virus would skip the respiratory system altogether, even better than a cold virus.

事实上， 一个真正强大的病毒会完全跳过呼吸系统，比普通的感冒病毒更好。

As it turns out, the thin layer of water lining the respiratory system presents a challenge.

事实证明，呼吸系统的薄水层是一个挑战。

Okay, so what does surface tension have to do with the respiratory system and gas exchange?

那么表面张力与呼吸系统和气体交换有什么关系？

In short, surface tension created by water lining the respiratory system prevents the lungs from expanding.

简而言之，水在呼吸系统中形成的表面张力阻止了肺扩张。