It's too late. You've absorbed too much, think you know too much.

太晚了，你们已经吸收了太多东西，以为自己懂得太多。

youdao

I know how busy you must be and naturally I wouldn't want to take up too much of your time.

我知道你一定很忙，当然我不想占用你太多的时间。

《柯林斯英汉双解大词典》

This kind of disrespect or no polite expression, you know they are out of some kind of ignorance, then you don't care too much.

这种不尊重或者没有任何礼貌的表示，你知道他们是出于某种无知，你就不会太在乎。

youdao

"You know, it was a pretty big thing and certainly much too big to fit inside an eye socket."

VOA: standard.2010.06.30

You know from experience if you've ever mixed them to make salad dressing, they don't mix too well. And you may know that if you heat them up, they mix much better.

经验告诉我们,你无法把它们混合做成色拉酱调料，他们不会很好的混合，但是你也知道,如果我们把他们加热，就能够混合的更好。

麻省理工公开课 - 热力学与动力学课程节选

but you know, I felt it was like too much of a time commitment.

但是我觉得这花时间太多了。

我喜欢运动 - SpeakingMax英语口语达人

Simply, stated this means you know too much.

FORBES: This Is Why Your Boss Hates You

But as our cases demonstrate, in business as anywhere else, you cannot possibly know too much.

BBC: I spy with my private eye.....

Ms. WILDER: Well, you know, actually not too much about Wie.

NPR: Golfer Wie Makes Pro Debut in Samsung Tourney