We breathe by contracting our diaphragms, which expands our chest cavities.

我们通过收缩膜来扩张胸。

As we breathe in, the diaphragm tightens.

当我们气时，膜会收紧。

Do opera singers have more powerful diaphragms than other people?

戏剧家的膜不比其他人更有力？

You can see my diaphragm closed.

你可以看到我的膜闭合了。

When your diaphragm expands, your lungs get smaller and the air is forced back out.

当膜放松（往上回弹），肺部变小把空气推出去。

Vocal folds when they're closed together, they create an ability to stabilize our diaphragm.

当声音折叠合在一起时，它们造了一种稳定膜的能力。

D is for the diaphragms which shouldn't be too flat, but appear fairly symmetric.

D指膜" Diaphragm" ，不能过于扁平，双侧近似对称。

In summary, ears ringing, jaw fractured, three ribs cracked, four broken, diaphragm haemorrhaging.

总结，耳鸣、下颚骨折、肋骨三根粉碎、四根骨折、膜大出血。

When your diaphragm contracts, your lungs expand and fill with air.

当膜收缩（像活塞往下拉），你的肺部扩张并充满空气。

Hiccups are an uncontrollable contraction of the diaphragm muscle that we use to draw air into our lungs.

打嗝膜肌肉无法控制的收缩，我们用它把空气入肺部。

Enter the diaphragm — a big, thin set of muscles that separates your thorax from your abdomen.

进入膜——一组又大又薄的肌肉，将你的胸部和腹部分开。

When your lungs empty, your diaphragm relaxes and looks kinda like an arc pushing up to squish your lungs.

当你的肺空了，你的膜放松，看起来有点像一个弧形向上挤压你的肺。

When you breathe in, your diaphragm contracts, pulling itself flat, and your external intercostal muscles between your ribs contract.

当你气时，你的膜收缩，把自己拉平，肋骨之间的外部肋间肌肉收缩。

Sleep apnea stops diaphragm muscles from contracting.

睡眠暂停会阻止膜肌肉收缩。

Or there's a person following you throughout rehearsal, holding your ribcage to see if you're breathing properly through your diaphragm.

或者在整个排练过程中，有人一直跟着你，按住你的胸，看你否通过膜正确。

Like all muscles, your diaphragm is something you can flex too.

与所有肌肉一样，膜也可以弯曲。

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

系统有气管、肺和膜三个主要部分。

But flexing your diaphragm isn't something you do to lift things.

但弯曲膜并不用来举起东西的。

To summarize, the diaphragm physically pushes on the air in order to generate sound waves.

总而言之，膜通过物理方式推动空气以产生声波。

No one, not even scientists or doctors have figured out why the diaphragm has these sudden movements.

没有人，甚至科学家或医生都没有弄清楚为什么膜会突然运动。