It might seem impossible to say anything coherent about such an eclectic mix of places.

要讨论种不相及组合的相关性似乎不可能的。

And I would say, it's a bit of apples and oranges.

我想说，简直不相及。

They originally had nothing to do with each other.

它们原本不相及的。

It's, it's, it's, uh, a totally different situation! It's, it's apples and oranges, it's, it's orthodontists and lesbian- I gotta go.

，，完全两回事，不相及的事，牙医和女同志的，我得走了。

And if you are compare apples and oranges you are comparing two things that are so different that any comparison is really not productive.

如果compare apples and oranges-把苹果和橘子一起比较，就把不相及的事物一起比较。