They expand when inhaling air, and contract when exhaling air.

它们在吸入空气时膨胀，在空气时收缩。

To help maintain focus, make a quiet mental note on each in breath and out breath, like " in" and " out."

为了帮助保持注意力集中，每次吸入和时静想一下，比如“吸入”、“”。

This is because warm air doesn't rise in space, so sleeping astronauts in poorly ventilated sections can wake up gasping for air, surrounded by an invisible bubble of their own exhaled carbon dioxide.

这是因为暖空气在太空中不会上升，所以在通风不畅地方睡觉话，醒来时你会发现，被自己二氧化碳组成无形气泡包围了，会喘不过气来。

These are microscopic particles that people exhale just by breathing and speaking.

这些是人们仅通过吸和讲话即可微小颗粒。

First, arms up, deep breath in, and sigh out, ahhhhh, like that. Very good.

第一，举起臂，吸气，然后，啊哈，就像那样。

Then Carbon dioxide makes the reverse journey to eventually be exhaled into the world.

二氧化碳则会走相反路径，最终被体外。

On average, pregnant women suffer twice as many bites, as they respire 20% more carbon dioxide and have a marginally elevated body temperature.

平均而言，怀被叮可能多一倍，因为她们多 20% 二氧化碳且体温较高。

So London in particular, as you get to the center, it becomes a complete gridlock where you breathe diesel fuel all the time, and when you get home, you will blow black dust out of your nose.

所以特别是伦敦，当你到达市中心时候，那里道路就完全阻塞了，你在那儿吸一直是柴油燃料，等你到家时候，从鼻子里都能黑色灰尘来。

See your, let me fix that up, see your or see my breath.

看到你，让我修改一下，看到你或我气。

See, if the tongue is too low, you've just got it just a breath, right?

如果舌头太低，发来声音就像一口气，对吧？

On Earth, the forests and oceans absorb the carbon dioxide we exhale.

在地球上，森林和海洋吸收我们二氧化碳。

I mean, it might eat brains and exhale space AIDS.

这东西指不定还会吃脑子宇宙艾滋呢。

And they spiked these exhalates with 1,000 parts per billion H2S.

他们在袋子里气中加入了十亿分之一千浓度硫化氢。

They have found a way to breathe the booze out.

他们找到了一种把酒给来方法。

I want you to take a deep belly-breath through your nose for five seconds hold it for a second, then push all the air out through your nose, slowly, counting to five.

我要你用鼻子深吸一口气，5秒钟，然后憋1秒钟，再把所有空气从鼻子里来，慢慢地，数到5。

Breathe in slowly, hold the breath for three seconds, then breathe out slowly.

慢慢地吸气，屏住吸三秒，然后缓缓。

With his warm breath he gently fanned, the tresses fair and long.

伴着温暖气息，它用长毛给孩子取暖。

This gets rid of the waste carbon dioxide exhaled by the astronauts.

这可以去除宇航员二氧化碳废料。

Count to five when your lungs are full. Then breathe out slowly. Repeat several times.

保持吸气状态，数到五，直到你肺里充满了空气。然后慢慢。重复几次。

Here's how to test the BOLT score, as described by Patrick McKeown: Take a normal breath in through your nose and let it out through your nose.

Patrick McKeown 博士在此演示了 BOLT 测试使用方法：首先用鼻子气，接着再用鼻子。