OK, so what's the speed of dark?
好吧，那么黑暗的速度呢？
OK, so, now that we know the position of the point as a function of time, we can try to study how it varies in particular things like the speed and acceleration.
好，既然我们已经知道点的位置，它是一个关于时间的函数，我们就能了解，它在诸如速率或加速度的量中是如何变化的。
Paul: OK, speed demon, which car do you want.
保罗：好吧，速度怪兽，你想要那一辆。
Now, Jim, would you please read it in normal conversational speed?OK.
吉姆，请你用下常语速读好吗? 好吧。
OK. Then normal speed, let's see if I can do it better.
下面我用常速读，看看是否能好一点。
Tony: ok, ok. I exceeded the speed limited. Don't suspend my driving license, please.
托尼：好的，好的，我超速了，请别扣我的驾驶证，好吗？
Now I just need a bit more "blast" and speed, but I am sure that until the opening match for Brazil I will be ok , he said.
现在我仅需要再加强点爆发力和速度，我相信在巴西队开赛时我会准备好的。
OK, I'll keep it under the speed limit.
好，我会保持在速限以下。
OK, I'll keep it under the speed limit.
好，我会保持在速限以下。
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