“不知为什么”意思就是“感到纳闷”或“想知道”,所以一般用 wonder 翻译。“不喜欢”有多种说法,例如:
I wonder why I take a dislike.
I wonder why I am displeased
I wonder why I disapprove of it.
I wonder why I give a dislike of it
I wonder why I have an aversion to it.
I wonder why I have no use for it.
I wonder why I am bothered with it.