Your chest is tight, and at times, it's hard to catch your breath. You wheeze or cough so hard that your sides soon ache.
원문출처 : http://www.cnn.com/2017/04/04/health/pneumonia-disease-symptoms-causes-treatments/index.html
원문출처 : http://www.cnn.com/2017/04/04/health/pneumonia-disease-symptoms-causes-treatments/index.html