I don't know. Correction—I do know, but I'm not going to tell you.
我不知道。不，我知道不假，但不打算告诉你。
I hope you can recognize by my saying that how much you do know about the subject.
我希望你能从我的话中认识到你究竟对这个主题了解多少。
One thing we do know is that in the decades since Gonur-depe was discovered, the site has deteriorated significantly.
我们确实知道的是，在戈纳尔-德佩被发现后的几十年里，这个地方已经严重恶化。
These beavers do know how to build dams, and do so if the need arises, as may occur if they are forced to relocate after felling and consuming all nearby trees.
这些海狸知道如何建造水坝，而且在有需要的时候就会这么做，比如当它们在砍伐和消耗了附近所有的树木后被迫迁移的时候。
It isn't actually known how many sites there are across Australia where rock art can be found—but unfortunately, we do know that much of the art is being lost to us.
目前还不知道在澳大利亚有多少地方能够发现这种岩石艺术；但不幸的是，我们知道有很多艺术作品正在消失。
There are plenty of places around the globe where people have no access to heavy machinery but do know how to deal with wind, sailing and basic mechanical principles.
在世界上有很多地方，人们都无法使用重型机械，但却知道如何处理风力、航行和基本的机械原理。
I do know how upset the shop staff can get, but I try to persuade them to keep smiling.
我知道店员会有多生气，但我努力说服他们保持微笑。
I don't know the words to a lot of songs, but I do know some folk songs that my grandma taught me at an early age.
我不知道很多歌的歌词，但知道一些我奶奶小时候就教会我的民歌。
我确实了解鸡。
What we do know is that people tend to have different kinds of nightmares at different points during the sleep cycle.
我们现在所知道的就是，人们在睡眠周期的不同阶段往往会做不同类型的噩梦。
What we do know is that as we include longer time intervals, the record shows increasing evidence of slow swings in climate between different regimes.
我们已经了解到的情况是，随着我们纳入的时间跨度变长，这一记录提供了越来越多的证据表明气候在不同的统治期存在缓慢的波动。
但我们确实知道一些情况。
What I do know is that I'm alive.
我所确实知道的只是我还活着。
但是我们的确知道了他。
But we do know about productivity.
但是我们对生产力却很了解。
一定要知道谁有控制权。
You sure do know all the laws.
你确实知道所有的法律。
But I do know that I trust him.
但我知道我信靠他。
Then talk about what you do know.
然后就说你知道的。
But I do know the importance of study.
可我确实知道学习的重要性。
But we do know that it will happen.
但我们确实知道这将会发生。
但是我懂一些。
这就是我所知道的。
What we do know is what was published.
我们只知道那些被出版的。
“We do know certain facts, ” I offered.
“一些既定事实是很清楚的。”我说。
We do know they're coming, just not when.
我们知道地震会来临，但是不知道是在何时。
Only their own do know that success is possible.
只有自己去做，才可能知道能否成功。
From now on, you do know him and have seen him.
从今以后，你们认识他，并且已经看见他。
"Then you do know what's going on here," he said.
丈夫说，“那么你是知道这里正在发生什么了。”
"Then you do know what's going on here," he said.
丈夫说，“那么你是知道这里正在发生什么了。”
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