1.你对这个不好奇吗?
Aren't you curious about this?
2.我对这件事的`起因很好奇
I'm curious about the reason of the event.
3.我很想知道那个秘密
I'd love to know about that secret.
4.我对他是谁很感兴趣
I'm really interesed to discover who she is.
5.我对你正在做的事没兴趣
I have no interest in what you are doing.
6.我觉得它相当乏味
I found it rather dull.
7.我不关心别人的事
I don't care about others' business.
8.对我来说无所谓
It doesn't matter to me.
9.我不在乎
I don't care.
10.随便
Either way.