I'm looking for a child. I believe your husband can help me find her.

我正在找一个孩子。我相信你丈夫能帮我找到她。

《柯林斯英汉双解大词典》

I am still expecting more from me as well. But believe me, I do everything I can do.

我对自己的期望也更高。但是相信我，我能做的我都做了。

youdao

I don’t believe what you said, but if you can prove it, you may be able to convince me.

我不相信你说的话，但是如果你能证明它，或许会把我说服。

youdao

- I can't believe you're making me do this.- Just smile.

VOA: standard.other

But for those of you who raised your hand just tell me I mean why do you think--what makes you believe food can be addictive?

但那些举手的同学,请你们告诉我,你为什么觉得食物会上瘾呢

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

I can believe in the possibility of a world without me, even though I smuggle myself in as an observer when I picture that world without me.

即便在设想没有我的世界时，将自己作为观察者带入其中,我还是能相信没有我的世界存在的可能。

耶鲁公开课 - 死亡课程节选

Or you can believe me when I say that it makes a difference.

WHITEHOUSE: President Obama Speaks on the Importance of Extending the Payroll Tax Cut | The White House

Believe me, I can upgrade you.

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"I can believe it because of the guy sitting beside me, " said Clarke.

BBC: Clarke praises 'freakish' Hussey