Scientists do not know how much and what kinds of noises are harmful to ocean animals.
科学家们不知道有多少噪音以及何种噪音对海洋动物有害。
If people do not know how much they are eating, it can be really hard for them to stick to a diet.
如果人们不知道自己吃了多少，他们就很难坚持节食。
One of them put it like this: "You know, Bob, you can just buy so much stuff, and when you get to the point where you can just buy so much stuff, now what are you going to do?"
其中一个是这样说的：“你知道吗，鲍勃，你可以买这么多东西，当你可以买这么多东西的时候，你会怎么做？”
Since you're going to university in England, do you know how much it is for international students to study there?
既然你要去英国上大学，你知道国际学生在那里学习要花多少钱吗？
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 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。
As you only have a short stay in Shanghai, you probably will not be able to do much more sightseeing. But if I can help in any other way, please let me know.
由于您在上海只能做短暂停留，您可能无法做太多的观光。但如果我能在任何其它方面帮上您的忙，敬请告知我。
At work, people pretty much know what they're supposed to be doing: working, making money, doing the tasks they have to do in order to draw an income.
在工作中，人们很清楚他们应该做什么：工作，赚钱，为了获得收入而做他们必须做的事情。
There is an increasing demand for people who are able to take in great area at a glance, people who perhaps do not know too much about any one field.
现在对那些一眼就能看懂大领域的人的需求越来越大，这些人可能对任何一个领域都不太了解。
I just cannot resist chocolate, even though I know eating too much of it will do harm to my teeth.
尽管我明白吃太多巧克力对牙齿不好，但我还是抵挡不住巧克力的诱惑。
Do you know how much Mary paid for all these books?
你知道玛丽买这些书花了多少钱吗？
"Do you know how much it costs?" he asked the young student.
“你知道它要多少钱吗？”他问年轻的学生。
Do you know how much a 5-day trip to Hong Kong costs?
你知道香港五日游要花多少钱吗？
Said the first, "I know I can't do much, but perhaps I can cheer him a little."
第一个说：“我知道自己做不了太多，但或许我可以让他振作一点。”
I know well how slight is my talent and how superficial my scholarship, and that I do not deserve so much praise.
深知自己才疏学浅，不称揄扬。
Much of what we do know comes from studying brain injuries, which let us crudely infer the function of various areas based on the apparent effects of the wounds.
我们对这个问题的认识大多来自对脑损伤的研究，根据不同脑区损伤后的主要表现，可以大致推测各部位的功能。
We don't know very much about HD 7924 b, but what we do know makes the planet worth investigating.
我们对HD 7924b知之不多，但从我们知道的部分来看，值得对它进一步研究。
The 'glass half-empty' view is that there is still much we have ignored and much we do not know.
“悲观”(glass half - empty)的观点则认为，现在还有大量未曾注意到的内容，还大量未知的内容。
Over the past few weeks, aircraft engineers have found they do not know quite as much about metal fatigue as they thought.
就在几周前，飞机工程师才发现他们并没有完全了解金属疲劳——四月一日，西北航空公司812航班使用的波音737-300型客机在从凤凰城飞往萨克拉门托的途中发现在机身的上半部有一个五英尺的裂纹，不得不紧急迫降。
We know how to do it, it’s not talked about as much as before [but] what are you going to move on to?
我们知道如何去做，它不再像以前一样那么多被提及，[但是]你要往哪里前进呢？
Do any one of you know approximately how much higher it goes, if this ball has way higher mass than this one?
你们中的任意一个知道它近似高出多少么，如果这个球的质量比这个大的话？
But this much we do know - no faith justifies these murderous and craven ACTS; no just and loving God looks upon them with favour.
但是我们非常明白——没有哪种信仰会为这种凶残懦弱的行为辩护；任何正直慈爱的神都不会乐意看到这一切。
They have probably been on the internet and know much more [about a destination] than you do.
消费者也许都在上网，他们知道的（目的地信息）也许比你所知还要多。
"We do not know how much radioactivity was emitted through Fukushima and how it will spread throughout the world," he said.
我们不知道福岛泄露了多少核辐射，也不知道它们将怎样在世界范围内传播，“他说。”
I cannot quantify the physics of friendships and do not know exactly how much intense pressure can be applied before these glittery, brittle bonds break.
我没法把我们的友谊量化，也不能确切地知道，在我们闪光而易碎的骨头断裂之前，我们能到底能承受多大的压力。
Although analysts do not know how much of this has been spent, some part has probably been saved.
虽然分析家们并不知道这笔钱被花了多少，可能有部分已被存起来。
In fact, Becker explains, physicians do not know how much is too much or whether administering extra amounts actually benefits patients at all.
事实上，贝克解释道，医生并不知道含氧量达到多少才是过高，或者让病人另外吸入氧气是否真正地对病人有益。
In fact, Becker explains, physicians do not know how much is too much or whether administering extra amounts actually benefits patients at all.
事实上，贝克解释道，医生并不知道含氧量达到多少才是过高，或者让病人另外吸入氧气是否真正地对病人有益。
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