这个是最普通的但是可能有其它的这次失败的理由原因。

This is the most common cause, however there can be other reasons for this failure.

youdao

首先，我们迫切地需要相信世界有意义，相信每个结果都有原因，每件事发生都有理由。

The first is our pressing need to believe that the world makes sense, that there is a cause for every effect and a reason for everything that happens.

youdao

她没有给出充分的理由说明迟到的原因。

She didn't give an adequate explanation for being late.

《牛津词典》

Another characteristic of these years, which scholars refer to as the Dark Ages, just as they do the years after the fall of the Roman Empire-- dark for two reasons. Dark, in the most obvious way, because we don't have any writing, no record of them.

这也是这段时期的另一个特征,学者们称之为,黑暗时代,他们也是这么称呼,罗马帝国陷落后的那段时期的,称黑暗主要有两个原因,黑暗,最明显的理由,是因为我们没有任何关于他们的史料和记录

耶鲁公开课 - 古希腊历史简介课程节选