I've lost count of specific content.

具体内容我已记不清了。

I've lost count of the number of bugs I've found in code that was too simple to break.

我已经记不清在“简单得不会出问题”的代码中发现的 bug 的数量了。

I have bought so many new books these years that I ' ve lost count of them.

这几年我买的书太多了,不知道一共有多少本.

I've lost count of the number of late-night movies we've watched in this way or the number of dawns we've seen together.

我已记不清我们看了多少这样的深夜电影，也记不清我们在一起迎来了有多少个这样的黎明。