dis-, 不，非，使相反。believe, 相信。

1. He had never been able to disbelieve it completely.

他从未能够对此予以全盘否定。

来自柯林斯例句

2. There is no reason to disbelieve him.

没有理由不相信他。

来自柯林斯例句

3. Why should I disbelieve her story?

我为什么要怀疑她的说法呢？

来自《权威词典》

4. Don't think I disbelieve your story.

别以为我不相信你的话.

来自《简明英汉词典》

5. There was no reason to disbelieve what he had just been told.

他不能不相信何慎庵的话.

来自子夜部分