dyspnea
noun [ U ] medical specialized (UK also dyspnoea) uk/dɪspˈniː.ə/ us/ˈdɪsp.niː.ə/
呼吸困难
difficulty in breathing and the feeling of not getting enough air
Dyspnea can be a sign of disease of the lungs or heart. 呼吸困难有可能是肺部或心脏疾病的征兆。