It dove toward Earth at great speed, spinning rapidly out of control.

VOA: special.2010.07.07

So, when I threw that thing up and you caught it, what you are doing mentally was immediately figuring out where it started and at what speed.

所以当你接住我抛出的物体时,你大脑里的反应就是,立刻弄清它的初位置以及初速度

耶鲁公开课 - 基础物理课程节选

At this instant, the planet may be moving at that speed.

在这个时刻,行星可能在以这个速度运动

耶鲁公开课 - 基础物理课程节选

At that speed, the pressure is three times the force of gravity.

VOA: special.2010.07.07

And so when you actually have a device the bits don't flow at the speed of light in reality.

因此，当你拥有一个设备,数据位并不能以现实中的光速传输。

哈佛公开课 - 计算机科学课程节选

At the end of the test flight,the speed of the Apollo spacecraft was increased to forty thousand kilometers an hour.

VOA: special.2009.07.08

You do it so quickly that the heat flow between the inside of the bicycle pump and the outside is too slow compared to the speed at which you compress.

我们用力很大,于是压缩得很快,打气筒内外热传递的速度,与之相比要慢得多。

麻省理工公开课 - 热力学与动力学课程节选

And one that is moving continues to move at an unchanging speed, so long as no outside force influences it.

VOA: special.2011.06.01

Let's suppose n is 1000, and we're running at nanosecond speed.

假入我们一秒钟运算十亿次，我们已经看过了对数级，线性增长的。

麻省理工公开课 - 计算机科学及编程导论课程节选

The findings suggest that even a half-hour walk at a quick speed every day could lower the risk of cognitive impairment.

VOA: special.2011.07.27

And they are in motion and moving at very, very high speed.

它们都在运动,以非常非常高的速度运动。

麻省理工公开课 - 固态化学导论课程节选

And a big wireless carrier, AT&T,calls extending the net neutrality policy "a risky experiment" with American investment in high-speed Internet.

VOA: special.2009.09.25

Okay. So at that point the music begins to speed up with the accelerando.

嗯,从音乐的那一点开始,节奏随着渐速音加快

耶鲁公开课 - 聆听音乐课程节选

Super-fast Internet connections let people watch movies and send huge amounts of information at the speed of light.

VOA: special.2010.09.01

There are all kinds of little abbreviations they make, ; and it suggests that language has to be wrenched out of its conventions; syntax can be set aside; language needs to move at the speed of experience and at the speed of ecstasy.

他们创造了各种缩写，好像语言必须得被扭曲得偏离原样;,语法可以被搁置一边，语言需要以体验和,忘形的速度移动。

耶鲁公开课 - 1945年后的美国小说课程节选

Rapping could be described as speaking or singing words at a fast speed over music with quick beats.

VOA: special.2009.10.14

And the experimenter is back there with the speed knob and at random intervals he just speeds up the tape of their heart and then slows it down.

实验者回到实验室，带着录音设备,随机地,他加速了心跳的录音,然后又慢下来。

耶鲁公开课 - 心理学导论课程节选

A newly released proposal calls for almost everyone in the United States to have high-speed Internet service at home within ten years.

VOA: special.2010.03.19

c We know it's very specific for light because in this equation is c, the speed of light. So any time you go to use this equation, if you're trying to use it for an electron, just ask yourself first, does an electron travel at the speed of light?

我们知道它只对光适用是因为在这个方程里有,光速，所以下次你们用这个方程前，如果你们要把它用到一个电子上，先问问你自己，电子的运动速度是光速吗？

麻省理工公开课 - 化学原理课程节选

The team made the discovery by measuring the speed at which our galaxy is moving through space.

VOA: special.2009.01.20

And if you are looking at a keyboard, we can predict in the real time very rapidly that beat your very single finger typing speed, exactly the letters you like to type and hit, therefore provide a communication mechanism that Christopher Reeve and those similar with him can benefit from.

如果你在看电脑键盘，你可以十分快速地,实时预知自己手指敲击键盘的速度，预知你想录入的字母，这样便为克里斯托弗·里夫,和其他你说熟悉的人提供了一种沟通机制，使他们从中受益。

斯坦福公开课 - 7个颠覆你思想的演讲课程节选

Some of the tracks were recorded at normal speed and some were recorded at half speed.

VOA: special.2009.09.27

When does it hit the ground and at what speed?"

该物体何时落地,落地速度是多少

耶鲁公开课 - 基础物理课程节选

Some examples are activities like walking at an increased speed, dancing,swimming or riding a bicycle.

VOA: special.2010.06.08

Even though a hard drive spins at 7200 times per minute or even faster, that's relatively slower than the speed of light.

即使一个硬盘驱动器的转速达到每分钟7200次,甚至更快，仍然比光速慢。

哈佛公开课 - 计算机科学课程节选

Bohlin's work with planes showed him what could happen in a crash at high speed.

VOA: special.2010.02.09

You put a chunk of wood on a table and you try to move it at constant speed.

你把一大块木头放在桌子上,试着让它匀速运动

耶鲁公开课 - 基础物理课程节选

The American buffalo could run at the speed of almost seventy-five kilometers an hour.

VOA: special.2009.02.15

This is the starting speed, that's the rate at which it is gaining velocity, and that's how long it's been gaining it.

这是起始时的速度,这是速度的增长速率,这是加速的时间

耶鲁公开课 - 基础物理课程节选

The electron is not moving at the speed of light.

电子不是以光速运动的。

麻省理工公开课 - 固态化学导论课程节选