运动的快慢

It is only how fast an object moves that its speed indicates.

物体的速度所表示的，只是物体运动的快慢。

And, its magnitude tells me how fast it´s moving, and also what amount of smoke is moving.

它的大小表示运动的快慢，也就是运动烟雾的总量。

You must choose the right stock, predict the extent of its move, and forecast how fast it´ll get there.

你必须选择正确的股票，预测它运动的程度，还要预测它运动的快慢。

So, let´s see what the correct answer is, Wakefield and it is, in fact, Wakefield, right, because there´s an inverse relationship between how fast a particle is going and what its wavelength is.

所以，让我们来看看，正确的答案是什么，事实上，答案是，因为粒子运动的快慢，与它的波长之间是一个反比例关系。

So, speed is a number. It tells you how fast you are going along your trajectory. I mean, if you´re driving in a car, then it tells you how fast you are going.

速率只是一个数字，它告诉你，在轨道上，运动的快慢，我的意思是如果你开着一辆车，那么它就告诉你你现在开得有多快。