因素: factor; element 短语和例子决定因素 decisive factor; 积极因素 positive factor; 关键因素 the key facter; 致病的因素 factor in the causation of disease; 社会因素 social factor; 主导因素 leading factor; 基本因素 essential elem
癌: 名词[医学] (恶性肿瘤) cancer; carcinoma 短语和例子皮肤［绒膜］癌 cutaneum [chorionic] carcinoma; 致癌物质 carcinogen; carcinogenic substance; 肝癌 cancer of the liver; 肺癌 cancer of the lung
