try one's best

A conscientious or concerted effort toward an end; an earnest attempt.

努力，尽力为达到目标而所做的尽职的、一致的努力；热切的尝试

You really outdid yourself.

你确实尽了最大的努力。

Just try your best.

只要尽你最大的努力。

Please exert your best efforts to settle the matter.

请尽最大努力解决此事。

I have pledged to do my best.

我已保证尽最大努力。

I will do my best to help you.

我会尽最大努力帮助你。

You had need to do your best.

你应当尽最大的努力。

He meant himself to do his best.

他要自己尽最大的努力。

Do it as best you can.

尽你最大的努力做好它。

rack one's Brain

绞尽脑汁,努力思索

He's trying his best/hardest/utmost, ie as much as he can.

他尽了最大的努力.

To make the utmost possible effort.

竭尽全力尽最大可能的努力

He did his best even though he was ill.

尽管他有病，他还是尽了最大的努力。

"For all his efforts, he didn't succeed."

尽管他尽了一切努力，但没有成功。

back-breaking work, effort, etc

使人筋疲力尽的工作、 努力等.

He exhausted himself in the attempt.

他因十分努力而筋疲力尽.

Landscape architecture is striving to find ways of dealing with problems of our time.

景观设计致力于尽最大努力解决问题。

My plan is to continue to do my best and work towards achieving my goals.

我将尽力做到最好，努力向目标迈进。