disease
/dɪˈzi:z; dɪ`ziz/ n[C, U]
(case of) illness of the body, of the mind or of plants, caused by infection or internal disorder 疾病; 病患; （植物的）病害
a serious, infectious, incurable disease 重病、 传染性疾病、 不治之症
a disease of the nervous system 神经系统的疾病
prevent/spread disease 预防[传播]疾病.