I assure you we will do everything possible to find out why the mistake happened.

我向你保证，我们会尽一切可能找出导致失误发生的原因。

youdao

Of course, sons and daughters want to visit the facilities, talk to the administrators and residents and other families, and do everything possible to fulfill their duties.

当然，孩子们想要参观这些设施，与管理人员、居民和其他家庭交谈，尽一切可能履行他们的职责。

youdao

We must do everything possible to lift the siege.

我们必须尽一切可能解除包围。

《柯林斯英汉双解大词典》

"This was a human error which should never have occurred, and we are going to do everything possible to see that it is never repeated."

VOA: standard.2010.01.23

And they will do everything they can, everything possible to make him stay in jail and not go back to Panama."

VOA: standard.2010.07.07

"We are determined to do everything possible to achieve the fiscal deficit target, " he said.

BBC: Pm Manmohan Singh

"We are going to do everything possible to make sure it reopens next year, " she added.

BBC: Brynamman Lido sunk by ?20,000 repair bill

Companies do not have to be motivated to do everything possible to avoid collecting needless sales tax.

FORBES: Sales Tax Class Action Suits Seem Frivolous