I fail to see the logic behind his argument.

我不明白支持他论据的是什么逻辑。

《牛津词典》

I fail to see what women find so fascinating about him.

我就看不出他哪一点使女人神魂颠倒。

《牛津词典》

Other times I fail miserably.

有时候我非常不幸地失败了。

youdao

If I fail,no one will say, 'She doesn't have what it takes,' They will say, 'Women don't have what it takes.'" She made these comments in a speech to the National Press Club in Washington,D.C.

VOA: special.2010.08.08

In fact one of the frankly best things I ever did as an undergraduate was, perhaps fittingly, take this course pass-fail.

实际上我上本科时做的最得意的事,恰当地说，就是把这门课的成绩看成及格和不及格两种。

哈佛公开课 - 计算机科学课程节选

In fact, if that person has a 48 and the first person who had the weaker score has a 46, I could still pass the person with the 46, and fail the person with the 48.

事实上，如果这个人得了48分，而第一个人,得分低一点，是46分，我还是会让46分的人通过，而让48分的人挂科。

麻省理工公开课 - 固态化学导论课程节选

But I fail to see anything alarming about a plurality of white respondents reserving judgment in the case.

FORBES: Overstating Polarized Opinion in the Trayvon Martin Case

I'll have some fun, and if I fail I'll go do something else.

FORBES: Magazine Article

If I fail my driving test, how long will I have to wait before I can take it again?

FORBES: The New Gov.UK (And The Style Guide Behind It)