流行性感冒一种急性的有传染性的病毒感染,主要特征是呼吸道感染和发烧、寒战、肌肉疼痛和虚脱 An acute contagious viral infection characterized by inflammation of the respiratory tract and by fever, chills, muscular pain, and prostration.
有两名赛跑选手因虚脱而倒下了。 Two of the runners collapsed in a state of prostration.