我也不知道为什么，我在树林里有一点迷路。

But somehow I was then lost in the woods more or less.

youdao

我也不知道为什么，但是我跟着安达上车了。

I don't know why but I went on taking trams with Ada Ida.

youdao

我也不知道为什么总是迟到，别人怎么就不迟到。

I don't know why I am late all the time. No one else seems to be.

youdao

In fact, I do this as well, I mean I have water with me and I have no idea why because I'm not particularly dehydrated.

事实上,我也整天带着水壶,我是说我随身带水,但又不知道为什么要带,因为我并没有特别的脱水症状

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

But for me, I like to look at something and just say, "I like this. I don't really know why though."

但对我来说，我喜欢看着某个东西，然后说，“我喜欢这个。但我也不知道为什么。”

关于现代美术 - SpeakingMax英语口语达人

The third derivative, unfortunately, was never given a name, and I don't know why.

遗憾的是三阶导数没有专门的名称,我也不知道这是为什么

耶鲁公开课 - 基础物理课程节选