He already knows he has the job so the interview is a mere formality.

他已知道得到了这个工作，所以面试仅仅是走走过场。

《牛津词典》

He says he already knows everything about it.

他说他已经知道了一切。

youdao

I don't need to tell him anything. He already knows.

我不需要告诉他任何事，他都已经知道了。

youdao

He already knows you are his daughter.

VOA: special.2010.07.31

The difficulty with reading Machiavelli today is that we all think we already know what he knows and that is false.

今日阅读马奇亚维利的困难点,在于我们都认为我们早已知道,他所知道的东西，但那并不正确。

耶鲁公开课 - 政治哲学导论课程节选

The prime minister is using his position to spark a debate which he already knows he's won.

BBC: David Cameron on welfare: An unusual sort of speech

He already knows and works with the rest of the team very well.

WHITEHOUSE: President Obama News Conference

The German investor will perhaps invest more in New York, but he will invest in companies he already knows, say IBM.

FORBES: How An NYSE-Deutsche B?rse Merger Would Affect Individual Investors