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。
I know a sculptor who swaps her pieces for drawings by a well-known artist.
我知道有个雕塑家用她自己的作品去换一位著名画家的画作。
I've known him for years, but I still don't know what pushes his buttons.
我已认识他多年，可还是摸不透他的脾气。
I would have you to know that I am a Toad, a very well-known, respected, distinguished Toad!
我要你知道，我是一只癞蛤蟆，一只非常有名的、受人尊敬的、高贵杰出的癞蛤蟆！
I don't know a word of Russian, and so I actually try to avoid using the rather well-known Russian equivalents for these terms because I feel like an idiot.
我一个俄语单词都不懂，所以我尽量避免用那些相当有名的俄语对等词来表示这些术语，因为我觉得自己像个白痴。
When I look at my friendship with Joe, I wonder how many people I've known whom I never disliked but simply didn't take the time to get to know.
当我想到我和乔的友谊时，我就会思考，我认识的人中有多少个我不讨厌，但只是没有花时间去了解的人。
But if we put this together for a valid argument we get that is known to be false, so we know either one of these got to be false.
但是如果我们一起放出这个，作为有效论点，我们知道的就为假，所以我们知道两者中的一个为假。
We also know there are known unknowns; that is to say we know there are some things we do not know.
我们也知道还有一些已知的未知，也就是说我们知道自己还有一些不知道的事情。
My smile is easy to explain-i didn't know what was coming-but Lauren would have known.
我的笑很容易解释——当时我不知道接下来发生的事情——可是劳伦早就知道。
They say there are things they wish they had known, things they want you to know.
他们说有些东西他们希望已经知道了，还有一些想要去了解。
Testers must also know what defects are already known, and should therefore not be re-tested, and which are expected to be fixed.
测试人员必须也了解什么缺陷是已知的，不需要重新测试的以及哪些是需要确定的。
"I know what you think of me," I say. I hadn't known I would say it.
“我知道你是怎么看待我的。”我说，我以前不知道我应该这样说。
She responded, 'Why, yes, I do know you, Mr. Williams. I've known you since you were a boy, and frankly, you've been a big disappointment to me.
老奶奶答道：“废话，是的，我当然认识你，威廉姆先生，你还是个小屁孩儿的时候我就认识你了，坦白地说，你让我失望透顶。
I am the good shepherd, and know my sheep, and am known of mine.
我是好牧人。我认识我的羊，我的羊也认识我。
I don't know him well though I've known him for a long time.
我对他并不了解，虽然我认识他已经很长时间了。
However, if we've known each other for 3 years and she lets me know, then it has an entirely different meaning.
然而，如果我们相互熟识3年，她让我知道她喜欢我，那么这意义就完全不一样了。
Once she looked at them while they were all waiting for the car and she saw she would always and forever know them and be known by them.
当他们都在等着车子开过来时，她看了他们一眼，她知道她会永远记住他们，并且他们也会记住她。
But Colombians who have always known there was an armed conflict also know it is not over.
但是，对于那些知悉国内武装冲突的哥伦比亚人来说，他们同样知道这绝对不是结束。
If only he had known about it (but he didn't know)!
他那时要是知道(但他不知道)这事就好了！
Yet ye have not known him; but I know him: and if I should say, I know him not, I shall be a liar like unto you: but I know him, and keep his saying.
我却认识他。 我若说不认识他，我就是说谎的，像你们一样，但我认识他，也遵守他的道。
We do not know whether such an evolutionary process — with predictable stages, with known causes and effects — even exists.
在可以预见的历史阶段里，根据已知的因果律，我们根本无法确定这样的进化过程是否真正存在。
But we know so much more now than was known before.
但我们现在要比过去知道得更多。
This was why I never felt completely known by my husband, because he didn't really know me, and I didn't know him.
这就是为什么我不能完全了解我丈夫，因为他不了解我，我也不了解他。
So now we know everything there is to be known about this ellipse, and that came from the initial conditions from the four Numbers that I gave you.
现在从我给出，初始条件的，四个数值中，知道了关于，椭圆轨道的一切。
If you had really known me, you would know who my Father is.
你们若认识我，也就认识我的父。
Do you know why Detroit is known as "Motor City?"
您知道为什么底特律又名汽车城市吗？
If we'd known 10 years ago what we know now, this place would be very different.
如果我们能够在十年前就了解现在我们知道的这些，那么这个地方将变得大不同。
Did you know that before it was known as Google Earth, the popular 3d globe viewer was named Keyhole?
你知道Google地球的前身，那个流行的名为Keyhole的三维地球浏览器吗？
Did you know that before it was known as Google Earth, the popular 3d globe viewer was named Keyhole?
你知道Google地球的前身，那个流行的名为Keyhole的三维地球浏览器吗？
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