The robbery appeared to have been an inside job.

这次抢劫像是内部人干的。

Realize that happiness is an inside job.

要认识到快乐是一项内部工作。

Are you saying it's an inside job?

你是说这是内贼干的？

That is, rather, it's an inside job.

也就是说，相反，它的一个内部工作。