遗传并非导致这种癌症的一个因素。

Heredity is not a factor in causing the cancer.

《柯林斯英汉双解大词典》

心理压力常常是形成长期病的一个因素。

Stress is often a factor in the development of long-term sickness.

《牛津词典》

年龄差异是使该关系复杂化的一个因素。

The age difference was a complication to the relationship.

《柯林斯英汉双解大词典》

Well, there is another element, though, to the kind of language that Richard is describing learning, and that is the racial element.

至于理查学习控制语言的另一个因素，种族因素，也是理查被迫去。

耶鲁公开课 - 1945年后的美国小说课程节选

And the top answer that was 82% was the Internet, something like 60% said they thought the availablity of guns was a significant factor in the Columbine's shooting.

高达82%的人认为是因为网络，约有60%的人认为,枪支的使用是一个重要因素,造成了这起枪杀案。

麻省理工公开课 - 媒体、教育、市场课程节选

And sometimes it's a matter of factors that you need to figure out what it is, and maybe it's that there's extra light in the room we don't know about.

而且有时候它是,需要计算的一个因素，有时候这个房间里可能有,我们未知的额外的光。

麻省理工公开课 - 化学原理课程节选