What adequate cause can account for it?

什么充分的原因能够产生这样的结果？

youdao

Every effect must have an adequate cause.

每种结果必有一种足够的成因。

youdao

I feel I have adequate cause to be happy, and I WILL be happy.

我觉得我有充分理由感到愉快，我一定会愉快的。

youdao

It will provide a welcome safety net for many women who do not have an adequate state pension, but it could cause animosity among women who have worked hard throughout their lives and paid National Insurance Contributions.

BBC: NEWS | Business | Women face 'pensioner poverty'

The aim is to administer sufficient radiation to achieve an image scan of adequate quality, but not too much to cause harm to the patient.

WSJ: Scientists Find Safer Ways to Test Medical Procedures

Harriet Harman, the area's MP, said there would have to be a thorough investigation into the cause of the fire and whether the prevention was adequate.

BBC: Questions over fire escape routes