A tiny spider crawled from the sac.

一只小蜘蛛正从袋子里爬出。

Animals that poo out of their mouth sac?

从口囊里拉屎的动物？

They also have air sacs that go into their body.

它们体内也有气囊。

Inside a chicken egg, the growing embryo produces something called a yolk sac.

在鸡蛋里面，成长的胚胎产生一种名为卵黄囊的东西。

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

你的肺脏就像海绵，由许多小小气囊组成。

Like the theropods, these titans used air sacs to breathe and had light, hollow bones.

像兽脚亚目类恐龙一样，这些巨人使用气囊，而且有很轻的中空骨骼。

Some men lack functioning sAC because of a mutation.

一些男性为基突变而缺乏正常的sAC。

For your information, there are five hundred and fourteen eggs in that peachy little sac.

告诉你，在那小袋里有五百十四个卵呢。”

All right, as a quick recap… ovarian cysts are fluid-filled sacs on or in the ovaries.

好！快速回顾一下：卵巢囊肿是在卵巢内或表皮上充满液体的囊性物。

" Flanged" refers to the large cheek pads and pendulous throat sacs that some male orangutans have.

“凸缘”指的是一些雄性猩猩的大颊囊和下垂的喉囊。

What about their sac of poison?

它们的毒液呢？

That causes sAC to produce a bunch of cAMP.

这导致sAC产生大量的cAMP。

He looked at the egg sac. It was empty.

它看着那卵袋，已经空了。

So you'd think–no yolk, no yolk sac.

所以你会认为我们不需要卵黄，也不需要卵黄囊。

Walruses have an air sac under their throat, which helps them float vertically in the water and sleep.

海象的喉咙下面有一个气囊，帮助它们在水中垂直漂浮和睡觉。

Initially, doctors had no way to alter the stretchability or squeeziness of their patients' air sacs.

最初，医生没有办法改变病人肺泡的拉伸性或挤压力度。

They emerge enclosed in a white egg-like membrane that ruptures, leaving a cup-like sac at the stem's base.

它们被包裹在一个白的卵状膜中，破裂后在茎基部留下一个杯状的囊。

Is this true? asked the rat, eyeing the sac suspiciously.

“这是真的吗？”老鼠怀疑地看那个袋，问道。

Other times the amniotic sac might rupture, sometimes called " water breaking" .

另外，羊膜囊可能破裂，有时称之为“羊水破了”。

That problem happens deep in the lungs, in tiny air sacs called alveoli, which exchange carbon dioxide for oxygen.

这个问题出现在肺部深处，叫做肺泡的微小气囊中，肺泡是将二氧化碳转化为氧气的部位。