I extended not only my congratulations but my commitment to do everything possible to help him, not only unite our party but our country.

我不仅表示祝贺，而且承诺尽一切可能帮助他，不仅团结我们的党，而且团结我们的国家。

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》

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

"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