病因目前还难以解释清楚。
The cause of the disease is difficult to pin down precisely.
抽烟是引起几种严重疾病的病因。
病因未详。
治疗内在病因对缓解疼痛很重要。
经前综合症的确切病因尚未完全了解。
KF：心脏病的病因是什么？
行政浪费之症“病因”何在？
贫血的治疗方法取决于病因。
贫血有很多类型，每种都有不同的病因。
而对病因达成一致则花费了更长的时间。
And it took longer still to reach any kind of agreement on its cause.
该病通常多发于年轻男性，脱水是主要病因。
Young men are the usual victims, and dehydration the main cause.
细菌是否是病因之一，还尚不清楚。
这种细菌引起胃炎，也是胃溃肠最常见的病因。
They cause gastritis, and are also the most common cause of stomach ulcers.
在许多国家中，氡是肺癌的第二种最重要病因。
Radon is the second most important cause of lung cancer in many countries.
事实上，科学家仍没有找到乳腺癌的真正病因。
The truth is that scientists still have no idea what causes breast cancer.
最常见的一种病因是椎间盘突出。
女人原发性闭经的病因是啥子？
这也是引发尖锐湿疣病因的所在！
This is also the cause of the cause of the cause of condyloma!
他们正对这一疾病的病因进行探索。
They're carrying out a research into the causes of the disease.
要鉴定特异的病因并不总是可能的。
Identifying the specific causative agent is not always possible.
我患有这些症状最可能的病因是什么？
吸烟是很多人患肺癌的致病因素。
传统的病因理论与西方科学大相径庭。
Traditional theories of disease causation are very different to those of Western science.
这些发现可能还能够解释一些饮食性疾病的病因。
They may also help explain the cause of some eating disorders.
研究其发病因素及机制具有重要意义。
The study on etiology and pathogenesis is of very important significance.
在柬埔寨，疟疾长久以来一直是主要的病因和死因。
Malaria has long been a major cause of disease and death in Cambodia.
压力是许多疾病致病因素。
目的探讨慢性咳嗽病因及特异性治疗方法。
Objective To investigate the cause and specific treatment of chronic cough.
更确切的病因还不清楚。
最近的研究结果使得该病的病因非常清楚。
Recent research has thrown new light upon the causes of the disease.
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