High stress levels have been found to cause asthma attacks that make it difficult to breathe.

VOA: special.2009.03.24

You breathe it in, it infects the cells of your respiratory tract, and the virus begins to reproduce, and then it spreads throughout your body.

你将之吸入,病原体感染了呼吸道细胞,病毒开始繁殖,接着传遍你的全身

耶鲁公开课 - 生物医学工程探索课程节选

But there are all sorts of things, you can just breathe in and breathe out, and it's a real opportunity.

但也有很多种事情，你只需吸气呼气，实为难得的机会。

普林斯顿公开课 - 人性课程节选

She says it is important to let jazz music breathe, and evolve in new ways.

VOA: special.2010.04.09

While they're sitting there thinking about painful shock it's making their heart beat faster, it's making their palms sweat, it's making them breathe harder maybe.

因为在等待痛击实验时,他们的心跳加速，手心冒汗，可能呼吸开始急促。

耶鲁公开课 - 心理学导论课程节选

The treatments made it easier for him to breathe.

VOA: special.2009.07.28

So, it first infects you because you breathe in some of the infectious agent.

所以,只要吸入病原体,你就会被感染

耶鲁公开课 - 生物医学工程探索课程节选

It was very difficult for him to breathe.

VOA: special.2009.07.28

Whatever it is, continue to breathe deeply into your belly.

不管它是什么，继续向腹部深呼吸。

哈佛公开课 - 幸福课课程节选

When a baby is put face down in a bed, it begins to re-breathe carbon dioxide, which is toxic.

VOA: standard.2010.02.08

You shouldn't be able to hear very much either, and it mustn't have been too delightful to breathe out of the thing, although your nose is free, but it's covered by a nose piece.

而且也听不见什么了,同时,戴着头盔呼吸也不是很顺畅,虽然鼻子并不受束缚,但是上面有一块小薄片覆盖着

耶鲁公开课 - 古希腊历史简介课程节选