You really don't know what's going down?

你真的不知道发生了什么事？

《牛津词典》

Military historians may never know what brought down the jet.

军事史学家们也许永远不会知道是什么击落了那架喷气式飞机。

《柯林斯英汉双解大词典》

Do you know the correct way to shut the machine down?

你知道这台机器该怎么关吗？

《牛津词典》

About 4,000 - year-old corals? We don't know how much oil is down there."

VOA: standard.2010.06.08

Top-down processing is an example of when you know what something is you hear it that way.

举例来说,自上而下加工就是,当你知道某句话是什么的时候,你便会按照这句话去听

耶鲁公开课 - 心理学导论课程节选

You know, they've got more kind of like mid-end retail outlets down there

那里还有一些中端的零售商，

有各种各样的商铺 - SpeakingMax英语口语达人

The Congalese artists use that know-how to lay down tracks that reflect their unique personalities and culture, which are showcased at the culmination of the episode.

ENGADGET: Producer: James Trew

Now, I know -- and we all know -- that that rate of job growth is too slow to bring down the unemployment rate, and the continued weakness in the job creation remains a major challenge, one the President and the whole administration is committed to meeting, and a very difficult challenge.

WHITEHOUSE: VP Biden on Economic Expansion for the Middle Class

You know, this striking thing with - that will, you know, translate down to kids, of lying.

NPR: Before Congress, Clemens Insists He Is Innocent