真是难以相信你会幼稚到信任他！

I can't believe you were so naive as to trust him!

《牛津词典》

我担心没有人会相信我的话。

I was afraid that nobody would believe me.

《柯林斯英汉双解大词典》

没人相信驻扎在边境的士兵们会真的开火。

No one believed the soldiers stationed at the border would actually open fire.

《柯林斯英汉双解大词典》

I know that you're going to do a great job on this part. You are brilliant.

相信你一定会很好地掌握这个句型。你可棒了！

I'm going to 课堂 - SpeakingMax英语口语达人

But frankly, I'm convinced, insofar as I'm convinced of anything, that if one doesn't live by that, nothing of any interest is going to happen.

不过，坦率来讲，我相信，或者说，我确信，如果一个人不相信这一点，那么他的艺术创作只会平淡无奇。

普林斯顿公开课 - 人性课程节选

Is there any good reason to believe that we don't believe that we're going to cease to exist as a person?

有没有一个好的理由相信,我们不相信,自己会停止作为一个人的存在呢？

耶鲁公开课 - 死亡课程节选