They travel into our airways and infect our lungs.

它们会进入气管并感染。

Your lungs are like sponges that are made of tiny air sacs.

你就像海绵，由许多小小气囊组成。

I talked to one expert from the American Lung Association who talked about pregnant women also being at risk.

我采访了美国协会一位专家，他谈到孕妇也有风险。

And cigarette packages show disturbing pictures of diseased lungs.

是，过去几年中抽烟者抽烟受到了很多限制。很多国家不允许人们在封闭公共场合，比如酒吧，抽烟。香烟包装面也展示着令人方案患有疾病。

Her lungs are filled with secretions.

她里都是分泌物。

You actually use energy when you laugh, you move your diaphragm, you expand your lungs, and both those things can be helpful.

你笑时候实际会消耗能量，你隔膜会颤动、你会收，个都对我们有好处。

Yeah I think it would be very bad! We also heard about burst lungs - lungs are the organs in your chest that you use to breathe.

我想会很严重！我们还听到了破裂。是胸腔内用于呼吸器官。

As the right ventricle continuously pumps more blood to the lungs, the entire pulmonary vasculature may be overloaded and pulmonary hypertension may result.

当右心室不断泵越来越多血液到时，整个脉管系统会超负荷，可能会导致动脉高压。

And she also mentions asthma. This is an illness you hear a lot about when people discuss the effects of tobacco smoke and pollution on people's lungs.

她还提到了哮喘。种病在人们提到香烟或者污染给人们造成问题时经常提到。

The American Lung Association notes that smoky air can be a problem for young children because they breathe in more air relative to their body weight than adults.

美国协会指出，烟雾弥漫空气对幼儿来说可能是一个问题，因为相对于他们体重，他们吸入空气比成年人更多。

Lungs are contained within the thoracic cavity, the section of the human body encased by the rib cage and separated from the abdominal cavity by the diaphragm.

被胸腔包含在内，人体一部分被胸腔包裹并且由膈把它与腹腔隔开。

Things are not as bad as they once were, but according to the American Lung Association, Los Angeles is still the worst city in the United States for levels of pollutants.

虽然现在情况已经不像以前那么糟糕了，但是根据美国协会，洛杉矶仍然是美国污染物水平最高城市。

It's not good. I spoke with Paul Billings at the American Lung Association, who has worked with air pollution for 30 years, who said that he's never seen anything like this.

空气并不好。我采访了美国协会保罗·比林斯，他从事空气污染方面工作有 30 年了，他说他从未见过样糟糕情况。

It affects humans by damaging the lungs, triggering headaches, watery eyes, sore throat and even breathing difficulties, even in people who have zero history of respiratory problems. What should you do if you encounter vog?

它会通过损伤，引发头痛、泪眼、咽喉肿痛甚至呼吸困难方式影响人类，即使对于那些没有呼吸病史人们。当你遇到火山雾时该怎么做呢？

We found people with heart rhythm disturbance which had stopped their heart, we found people who had fainted, we found people whose gullets had burst, we found people who'd dislocated their jaws or burst their lungs.

我们发现它会扰乱心率，使一些人心停止跳动；我们发现它使一些人晕厥；我们发现它使一些人食道破裂；我们还发现它使一些人下巴脱臼或者破裂。

Until quite recently it was thought that anyone diving to one hundred meters or so would die painfully as his or her lungs imploded or chest wall collapsed, but the free divers have repeatedly proved otherwise.

直到最近，人们还认为，只要潜到100米左右深处，会内爆，胸壁会破裂，他或她就会痛苦地死去，但裸潜者反复证明，情况恰好相反。