coughing up blood from the respiratory tract; usually indicates a severe infection of the bronchi or lungs
同义词：haemoptysis
hemoptysis详细解释
he.mop.ty.sis n.（名词）The coughing or spitting up of blood from the respiratory tract.咯血：从呼吸道中咳出或吐出血来 来源：hemo-hemo-Greek ptusis [a spitting] from ptuein [to spit] 希腊语 ptusis [吐，吐痰] 源自 ptuein [吐，吐痰]
