What's the matter?
发生什么事了？

Yesterday I came here to buy lottery and you suggested me choose three as the last number.
昨天我来这里买彩票，你建议我最后一个号码买3。

Yes.
是的。

If I had listened to you, I would have got the highest price.
如果我听了你的话，我就已经获得最高奖金了。

Thus I'm regretful too.
那么我也后悔了。

Why?
为什么？

I should buy that number myself.
我自己也应该买那个号码。