Do we have to know Taylor series?
我们是否应该了解泰勒级数？
This point we have to know about.
这一点我们必须要了解。
我们都得知道事情的真相。
In that case, we have to know our background.
既然如此，我们必须要了解我们的背景。
Kaixin: We have to know how to control ourselves.
凯信：我们必须知道如何控制自己。
Will we have to know how to rotate vectors and so on?
我们需不需要掌握如何旋转向量这些知识点？
What I am saying is do we have to know everything all the time?
我是说，我们真的需要知道所有的事情么？
We have to know where these raw materials come from and how they are mined.
我们必须知道这些原料来自的地方和他们如何被挖掘。
Before fixing our prices, we have to know what your service charges will be.
在我们定价之前，我们的了解你们将收取多少服务费用。
But we have to know the technology properly for getting good result from it.
但我们要知道适当的技术获得良好的效果，从它。
Then there's one other that we have to know about, it's called the leading tone.
还有一个音符我们需要了解，我们称之为导音。
When we see someone doing wrong, we have to know that this is a god-being, misguided.
当我们看到某人做了错事，我必须知道这是一个好人做了不明智的选择。
The first thing we have to know is - when we are in a crowd, we think we know who we are.
我们需要知道的第一点是：当我们在人群中时，我们以为自己知道自己是谁。
That's what we have to know to compute the efficient portfolio frontier with three assets.
这些都是计算三种资产的有效边界,所需要用到的。
Yes, and to remain competitive and know where to aim, we have to know what our true competition is.
为了保持竞争力，为了找到努力的方向，我们需要知道真正的竞争对手是谁。
He said: "we can't do this in 11 different languages but at least we have to know the swear words in English."
“我们无法学会各队的11种语言，但至少得懂英语脏话，”他说道。
Though we see the negative new now and then, we have to know clearly that such case is rare, the world is still beautiful.
虽然我们时而不时地看到负面新闻，但是我们要清楚地意识到这样的案件的少数的，世界仍旧是美好的。
Yet we have to know that any efforts directed at controlling mosquitoes will work in all the different groups that transmit malaria.
另外我们必须知道控制蚊子的努力对所有传播疟疾的不同的群体都有效。
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。
We have to know a little bit of history and geography, because we need to have an environment in which to relate to the people around us.
我们必须知道一点历史和地理知识，因为我们有必要去掌握与我们息息相关的周围环境。
To solve this problem, we have to know what causes it and there are two reasons why you might prefer the idea of intelligent design to that of evolution.
要解决这个问题，我们必须要了解起因，有两个原因可能使你倾向于智慧设计论多过进化论。
As Steelworkers, we are interested in the heat treatment of metals, because we have to know what effects the heat produced by welding or cutting has on metal.
钢铁工人最感兴趣的东西莫过于金属的热处理，因为我们得了解焊接与切割时产生的热对金属的影响。
If we had been spotted at that point, I don't know what would have happened to us.
如果那时我们被发现了，我不知道我们会有什么后果。
If we had been spotted at that point, I don't know what would have happened to us.
如果那时我们被发现了，我不知道我们会有什么后果。
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