Schizophrenia has so many symptoms that psychiatrists are not sure whether it is a single disease or a grab bag of many disorders . 精神分裂症的症状则非常多，以致精神学家无法肯定它究竟是一种单独的疾病还是多种疾病的综合。
The islanders, their bodies ravaged by the white man's diseases and their culture destroyed by well-meaning missionaries, await extinction . 这个岛上的居民身体受到白人疾病的戕害，文化受到善意的传教士的摧残，只有等待绝种的份儿。
One does not need to be an expert on symptoms, lesions, and cures for diseases which are kept out of the flock through proper management . 不需要成为疾病的症状，病变和治疗的专家，因为可以通过恰当的管理把这些疾病拒之于鸡群之外。
This involves studying the cause of disease, the identification of disease patterns, the population's attitudes to disease, their tendency to seek cure . 这样就涉及到病因的研究和疾病型式的确定，涉及到人们对疾病的态度和寻求治愈的趋向。
A poor diet lowers your resistance to illness 不良的饮食降低你对疾病的抵抗力。
He would like to know more about this disease 他想知道更多关于这种疾病的信息。
Helps control the spread of infectious diseases 这就有助于防止传染疾病的传播。
The scientist researched the cause of the disease 科学家研究了这种疾病的起因。
Development in diagnosis and treatment of cervical diseases 宫颈疾病的诊疗进展
