我认为我已经努力了，但事实是我仍然不能得到一个满意的考试成绩。

I think I have tried hard but the fact remains that I still couldn't t get a satisfactory result on the exam.

youdao

大多数人会说“我已经努力了”，其实他们还远远没有发挥出他们的潜力。

Most people who say "I've tried," haven't scratched the surface of their potential.

youdao

无论如何，我们之间不会发生什么。而且，相信我，我已经努力说服自己了。

There is no way anything would ever happen between us, and believe me I've tried to convince myself otherwise.

《柯林斯英汉双解大词典》

But nevertheless, let's just go with this for a minute, and if we suppose that it took about a generation to enter the land so you see, I've done the math on the side here.

无论如何，我们还是要稍微讨论一下，假设，进入这块土地要一代人的努力,你看，我已经在这边做了算术。

耶鲁公开课 - 旧约导论课程节选

Do not haunt my soul. I have done well forgetting you.

不要缠着我，我已经很努力忘记了你。

耶鲁公开课 - 1945年后的美国小说课程节选

Franny and Zooey I will stop there, and please bring both On the Road and Franny and Zooey to section this week. And, by the way, one last thing: If you've been sketchy about your section attendance, I suggest that you try to pull up your socks and go.

我就说到这吧，下节课把On，the，Road和,两部小说带来课堂，顺便说一下，最后一件事：,如果你们的课堂出勤率已经很差了，我建议你们努力一点来上课。

耶鲁公开课 - 1945年后的美国小说课程节选