翻译：所以我想知道到底发生了什么?

so ,I wonder if you'd like to tell me what happend on earth? Please.

这是极委婉的说法！肯定没问题！

So I want to know what happened on earth?

所以我想知道到底发生了什么?
so I want to know what happened on earth?
so I want to know what happened in hell?
so I want to know what really happened ?