It is the cause of the problem, not the solution.

它是问题的根源，而不是解决方案。

youdao

Germany is not the cause of the problem, but it is not part of the solution.

德国不是问题的起因，但也不是解决方案中的必须的一环。

youdao

The big question is whether napping is the cause of the problem, or the result.

问题是，在这种关联中，午休习惯究竟是因，还是果。

youdao

Studies support the theory that there are several causes, instead of a single environmental cause or genetic problem.

VOA: special.2009.01.06

Many people said the problem with general levels of happiness or unhappiness rather, the cause is people have too high expectations.

很多人说,一般的快乐或不快乐水平，是由于人们有过高的期望。

哈佛公开课 - 幸福课课程节选

Don't just stop in the middle of the street because everyone is coming right behind, and it's going to cause a problem.

请不要停留在街道中央，因为街上人来人往，
你的停留是会惹麻烦的。

在纽约的感受 - SpeakingMax英语口语达人

And sure enough I saw the cause of the problem: my server was shut off.

FORBES: The Guy From Dell Thinks I'm A Dope...And He's Right

So rather than blindly following the mantra, analyze the root cause of the problem at hand.

FORBES: Choosing the Right Training?

Depending on the cause of the problem, Boeing might be able to recoup any costs from suppliers.

BBC: Dreamliner: No fault found with Boeing 787 battery