I don't believe in fortune-telling.

我不相信算命。

Pah, I don't believe a word he says.

呸，他说的我一个字都不信。

They say he's a psycho, but I don't believe it.

他们说他是个神经病，但我不相信。

Bah! I don't believe a word of it, he exclaimed.

“呸！我一个字都不信，”他喊道。

I don't believe a word he says.

他说的话我一句也不信。

I don't believe in ghosts.

我不相信有什么鬼魂。

I don't believe that's true.

我觉得这是不对的。

Because I don't believe you.

因为我不相信你。

I never snore, i don't believe that.

我不信，我从来不打鼾。

I don't believe it. I've never snored before.

我不信，我从来不打鼾的。