This is how we know it is the last hour.
从此我们就知道如今是末时了。
Also, it is cylindrically symmetric around the bonding axis, so this is how we know that it's a sigma orbital.
此外，它关于键轴是圆柱对称的，这就是为什么我们知道它是sigma轨道。
We don't know the answer, because studies done on how reliable this machine is have not yet been duplicated.
我们不知道答案，因为关于这台机器可靠性的研究还没有被重复。
So the employees know this is how we would like them to behave.
所以员工们知道,这些是我们想要的行为准则。
This is the bedrock of what we do as journalists — we have to know how to talk to people, draw people out and draw their humanity out.
这是作记者的基本能力——你必须知道如何与人们交谈，挖出他们的内心世界，挖掘出他们的人性。
How do we know if this is a good model?
我们怎么才能知道这是一个好的模型？
And scientists can tell those kinds of stories if they know how and they try. And this is one of those challenges I think we as scientists need to beat.
如果科学家们知道该如何叙事的话，他们应该尝试向公众讲述这种类型的故事，我觉得科学家们需要克服的就是这样的困难。
We know how important this is.
我们都知道这有多么重要。
How then does he see? "his parents said," we know that this is our son, and that he was born blind; but we do not know how it is that he now sees, nor do we know who opened his eyes.
如今怎么能看见了呢，他父母回答说，他是我们的儿子，生来就瞎眼，这是我们知道的，至于他如今怎么能看见，我们却不知道，是谁开了他的眼睛，我们也不知道。
This is the conundrum of how we perceive an object as an integrated whole, when we know that the brain processes the various elements of it - colours, angles, and so on - separately.
这是个谜题，即我们明知人脑单独处理某一客体的各种特征，如颜色、角度等，那么我们是如何将客体感知为一个整体的？
This means that much of what we need to know is contained in how we order the components of XML information.
这表示许多我们要知道的东西都包含在我们对XML信息组件的排序方式中。
So, how do we know what the other person is truly feeling? You have several options for getting this information.
那么，我们怎么知道别人真实的感觉？要想知道的话，你有几个选择。
We need to know how many people are coming, and how many people are living in this country, I think he is doing the right thing.
我们需要知道有多少人要来，现在在这个国家居住的有多少人。我认为他做的是对的。
OK, so now the question is, how do we know the first place that this is a suitable reductant?
好的，现在的问题是，我们如何能知道第一步中,镁是一个合适的还原剂？
We assumed that this growth of old trees is pristine rain forest because the only way we know how to manage a forest is to clear the trees, and these weren't clear-cut.
我们之所以认为这片老树是原始雨林，是因为我们自己所知道的唯一的管理树木的方式就是把树砍掉，而这里没有明显的砍伐痕迹。
How to make it seem that the king effectively decides, when we all know this is not true?
怎么才能当我们都知道国王已被架空的时候，还让人们看上去是国王在实际做决定？
The sum is greater than the parts. We all know this, but how oftendo we look at the parts of a design to make sure they are there tobalance out the sum?
一加一大于二，这个我们都知道，但有多少人能保证设计的各个局部在组成一个整体的时候保持良好的平衡？
The other thing that we know, which is what we were just discussing when we were going through the table is how this all relates to energy.
另外一个我们知道的事情就是，我们看这张图表的时候,我们讨论了,它和能量之间的关系。
The reason for this is that we do not know how deep of its sub work item levels are before the report builds.
这样做的原因就是我们并不知道构建报表之前，子工作项的层次有多深。
We don't know how this happens and nobody is doing research on it.
我们不了解生育到底如何起作用，也没有相关研究在进行。
We don't know how this is going to generalize other kinds of memory, " Barnes said.
我们目前还不知道它对其他类型的记忆能力有什么影响”，巴恩斯说。
What we don't know from this data is how children might have done with life skills in the pre-computer age.
从这份数据中我们不解的是：孩子有可能在前电脑时代学会生活技能吗？
What we don't know from this data is how children might have done with life skills in the pre-computer age.
从这份数据中我们不解的是：孩子有可能在前电脑时代学会生活技能吗？
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