I can't believe she'd do that, not after all I've done for her.

在我为她做了这一切之后，我无法相信她会那样做。

《牛津词典》

I don't believe in all that stuff about ghosts.

我不信什么鬼呀魂呀的。

《牛津词典》

With our continuous efforts, I believe that we can overcome all the difficulties on the road to protect the environment.

通过不懈努力，我相信我们是可以克服环保道路上所有的困难的。

youdao

I believe the declaration that "all men are created equal" is the great fundamental principle upon which our free institutions rest;

VOA: special.2009.02.09

And there's,as far as I can see, no reason at all to believe that he was feeling lonely, feeling distant,feeling alienated from the people who were keeping him company.

在我看来，完全没有理由觉得他感到孤独，感到距离感，感到被陪伴着他的人们疏远。

耶鲁公开课 - 死亡课程节选

I really believe in good exercise. That's why I like to walk all the time.

我也相信锻炼对人有好处。那就是我总喜欢散步的原因。

在中央公园溜达 - SpeakingMax英语口语达人

So I say all this, it's because I want you all to believe that anything is possible for you all.

WHITEHOUSE: First Lady Speaks to Students at Blues Workshop

All in all, I believe that the outlook from LVMH is strong for the rest of the year, with an organic revenue increase of about 6% likely in the fourth quarter.

FORBES: Clouds Are Gathering For LVMH, Luxury: Sales Increases May Be More Modest

But in all seriousness, I do believe that investing in your human capital can potentially be much more lucrative than all those other kinds of more traditional investments.

FORBES: Get Rich Investing In Your Own Human Capital