I was trying to place an order on your website, but I failed.

我想在你们的网站上下单，但是我失败了。

youdao

I failed in my attempt to persuade her.

我未能说服她。

《牛津词典》

What I failed to appreciate was the distance between the two cities.

我没有意识到这两座城市间的距离。

《牛津词典》

As I watched the fierce-looking creatures, I failed to hear twenty full-grown Martians coming from behind me.

VOA: special.2011.07.16

So the basic idea was fine, but I failed to satisfy the initial condition that the answer had to be between the lower bound and the upper bound. Right?

因此基础的思想是对的，但是程序没能满足,正确答案在给定的区间内这个条件,对不对？

麻省理工公开课 - 计算机科学及编程导论课程节选

I just failed.

我彻底失败了。

哈佛公开课 - 幸福课课程节选

But alas, I have failed.

FORBES: Why I'm Leaving Windows for Mac

First, really happy to be here and even play in the event because I failed to qualify.

BBC: SPORT | Golf | Tiger delighted with flying start

Here are a few of the items that Professor Morse picked up on that I failed to cover.

FORBES: Some Tax Developments Unrelated To The Fiscal Cliff Drama