Because node structures go in only one direction, they know nothing about the sequence of nodes that precede them.
由于节点结构只指向一个方向，所以它们完全不了解它们之前的节点的顺序。
Immediate feedback lets you know if you are headed in the right direction, and every expert appreciates that information.
即时反馈可以让你了解前行的方向正确与否，每一个专家都会珍视这些信息。
As the old adage goes, if you don't know where you are going, then any direction will do.
就像古老的谚语说的那样，如果您不知道打算去哪里，那么什么方向都行。
Like honeybees and ancient mariners, they can navigate by the sun, so they know the general direction in which to travel.
它们跟蜜蜂和古代海员一样，可以通过日照导航，从而知道出行的大致方向。
The International Emissions Trading Association, an industry body, called for “know your customers” rules, a step in this direction, in a letter to the EU that was sent a year ago.
一个行业组织，国际排放交易协会在一年前致欧盟的信中，要求遵循“了解你的客户”原则，便是朝这个方向迈出的一步。
Studies show that a man's brain measures speed and distance to know when to change direction.
研究表明，男性大脑通过估量速度和距离来知道什么时候转变方向。
After that he fully admitted that he had absolutely no idea what it meant, didn't know the details, but he knew that was the direction Nokia had to be heading.
这件事也值得一说。他在采访中说出这话的时候没有细想，后来也承认自己也不知道这话的意思，但他明白这就是诺基亚前进的方向。
It lets you know you're moving in the right direction.
它会让你知道你是否在对的方向前进。
We know that the acceleration is in this direction. We derived that.
我们已经推导出了加速度,是这个方向。
Crucially, they form a barrier to exchange between groups, as anyone who has been caught up in a crowd and pulled inexorably in the wrong direction will know.
关键的一点是，拉格朗日拟序结构中的界限可以在群体间互换，正如一个人被挤进了错误的人群接着随着人群驶向错误的方向。
And, without that direction and purpose we don't know who we are.
没有目标和方向，我们不知道自己是谁。
We might change direction along the way, but this is the ultimate goal as far as we know it right now.
一路上我们可能会改变方向，但就我们现在所知，它就是我们的最终目标。
If you look at a movie that's being played backwards, you know it immediately because most things have a distinct time direction attached to them: an arrow of time.
假如你让电影倒带播放，你会发现任何事情都带有明显的时间方向性质，就像有东西拉着他们：时间箭头。
Yes? How do I know the direction of a gradient?
我怎样知道梯度的方向？
Well, I would have to know the time that it takes for this change in direction.
这还得知道它，改变方向，所消耗的时间。
Spatial ability allows a man to rotate a map in his mind and know in which direction to go.
空间能力使男人能在大脑中旋转地图，知道往哪个方向走。
So long as we know where we are heading, it's OK to change direction.
只要我们知道该去哪，改变方向一点也没错。
I mean, if you are on a mountain, and you know that you are facing the mountain, that's the direction of fastest increase.
我的意思是，如果你在一个山上，你面对着山，那是最快的增加方向。
And you're trying, you know by Le Chatelier, you know that it went in the wrong direction for you here.
你在尝试你知道勒夏特列原理，你知道，反应朝错误的方向进行。
The only thing I don't know is whether this guy will be going in the same direction as big N or in the opposite direction.
我唯一不知道的事情是,这个东西和大N有相同还是相反的方向。
We choose which direction we want to aim for, you know, which point of the sphere we want to aim at.
需要把目标定在一个方向上，需要把目标定在球上的某个点。
Exactly. So we know if we simulate it, one, the drunk has moved in some direction, 1 and will be exactly one step from the origin.
是的，所以我们知道如果我们要进行模拟，这个醉鬼向某个方向移动了，移动的距离是。
x Well, we know how to compute partial w over partial x y or partial w over partial y, which measure how w changes if I move in the direction of the x axis or in the direction of the y axis.
我们知道如何计算∂w/∂,或者∂w/∂,这衡量了我在x轴,或者y轴方向上移动时，w的变化。
Every caribou knew when it was time to run and in which direction to go, even if it didn't know exactly why.
每只驯鹿都知道什么时候该跑以及往哪个方向跑，甚至它们并不知道它们为什么要那样。
Because scientists know it's foolish to try to predict the direction of a flu pandemic.
因为科学家知道，试图预测一场流感爆发的流行病是荒谬的。
Nearly all countries want to move in this direction, but do not know what policy options are most effective, what they will cost, and where to find the funds.
几乎所有国家都希望朝此方向迈进，但不知哪些政策选择最为有效，需要多少资金，并在何处可以找到资金。
Such people know clearly what they want and they know the direction they are heading to.
这种人非常清楚他们需要什么，知道他们前进的方向。
Most Americans don’t know what that is like, but unless the nation reverses direction, more are going to find out.
大多数美国人并不知道那是一种什么样的生活，但是，除非国家改变政策，否则更多的美国人将会面临那种生活。
Most Americans don’t know what that is like, but unless the nation reverses direction, more are going to find out.
大多数美国人并不知道那是一种什么样的生活，但是，除非国家改变政策，否则更多的美国人将会面临那种生活。
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