她呼吸急促，试图使自己镇定下来。

She was breathing quickly and tried to calm herself.

《柯林斯英汉双解大词典》

她呼吸开始较为顺畅了。

She was beginning to breathe more easily.

《牛津词典》

去年二月，她的疾病变得更加严重，每天必须至少戴15小时的呼吸机来帮助她呼吸。

Last February, her disease became worse and she had to wear a ventilator for at least 15 hours a day to help her breathe.

youdao

Her heart is beating a little faster, her palms are beginning to sweat, her breath is coming a little shorter than it otherwise would.

她的心跳开始加速，掌心开始冒汗，呼吸变得短促。

耶鲁公开课 - 心理学导论课程节选

And it is almost like being in love except what it really is is two shots of caffeinated espresso causing a rapid heart rate an increase in respiration, sweaty palms, but I don't realize--she doesn't realize that's what it is.

跟恋爱一样的感觉,其实什么都不是,而是双倍浓度的咖啡因,导致心跳加速,呼吸急促，掌心冒汗，但我没意识到--她没意识到那是什么。

耶鲁公开课 - 心理学导论课程节选