People suggested four possible causes.

人们提出了四个可能的原因。

youdao

They raised public awareness of the possible causes of heart disease.

他们提高了公众对心脏病潜在诱因的认识。

youdao

This way, when you encounter problems, there is a rather limited set of possible causes.

使用这种方法，当遇到问题时，可能的原因就相当有限。

youdao

These have all been identified as possible causes of the collapse disorder.

VOA: special.2009.09.22

It's possible that the causes of death are the same; it's possible they've changed, but we'll see.

可能死亡原因还是一样的,也可能已经不同,我们一会儿就知道了

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

So, it's possible that the very fact that we're going to die causes an interaction effect with our life so there's an upside to it.

所以，我们会死这个事实可能会,引起对我们生命的一种相互影响,是一种向上的影响。

耶鲁公开课 - 死亡课程节选

Checking all the possible causes can take time, anything up to 45 minutes in extreme cases.

BBC: NEWS | UK | Magazine | How do you diagnose death?

She didn't have any information to release on possible causes of or factors in the crash.

NPR: 6 Teens Killed In Ohio SUV Crash Are Identified

Other than the most likely cause, what are other possible causes for my symptoms or condition?

CNN: Occupational asthma