所以现在我速度很快。

So now I'm pretty fast.

youdao

现在我速度很快。

Now I'm pretty fast.

youdao

你们速度不变，会发现我速度在变化。

And you sit there and you say, "Aha, his velocity is changing."

youdao

Gallium arsenide switches ten times faster than silicon All of a sudden,I've got a clock speed ten times faster with no change in design.

砷化镓启动的速度是硅的10倍,突然，我得到了10倍快的时钟速度,但是设计没有发生任何改变。

麻省理工公开课 - 固态化学导论课程节选

The interesting thing here is that I can change the incident velocity continuously.

有趣的是,我可以逐渐改变入射速度。

麻省理工公开课 - 固态化学导论课程节选

One way is to say, if I do a full revolution, I think of the speed as a distance over time.

一种方法是,如果我转完整的一圈,我认为速度就是距离除以时间

耶鲁公开课 - 基础物理课程节选