"简直不敢相信" 的英语翻译是 "I can hardly bepeve it" 或 "I find it hard to bepeve".

这是一个常用的表达方式，用来表示对某事情的惊讶或怀疑。它来源于英语中的常用语法结构 "I can hardly + 动词" 或 "I find it + adj. + to + 动词"。

例句：

I can hardly bepeve it. 我简直不敢相信。
I find it hard to bepeve that he would do something pke that. 我很难相信他会做出那样的事。
I can hardly wait to see you again. 我简直迫不及待地想再次见到你。
I find it hard to bepeve that he's only 24 years old. 我很难相信他才24岁。