This rapid breathing is one of the most common symptoms of pneumonia.

急促的呼吸是肺炎的一种很常见的现象。

This rapid breathing causes hypocapnia, a drop in the blood's carbon dioxide levels.

这种快速呼吸会导致低碳酸血症，即血液中二氧化碳浓度下降。

Stress and anxiety can thus be linked with rapid breathing.

因此，压力和焦虑可能与呼吸急促有关。

And I could hear short hard rapid breathing over the telephone.

我可以听到电话里短促而急促的呼吸声。