What on earth are you talking about?你到底在说什么

on earth 究竟； 到底

How on earth do they manage to rob the bank?

他们到底怎么抢了银行的？

Who on earth is that female he's with?

跟他在一起的那个女人究竟是谁?

No matter how much we try to escape our past,we seem destined to repeat it.无论我们多想逃离过去似乎命中注定历史会重演

destine to指定; 预定到 ... 去

Some love stories, destine to have no end.

有一些爱情，是注定没法走到终点的。

He was destined to enter the Church.

命运注定他要当牧师。

no matter无论； 不管

No matter where she may be, she will be happy.

不管她在哪里，她都会是幸福的。