Our speed over the ground was a miserable 2.2 knots.

我们在地面上的速度只有区区的2.2节。

《柯林斯英汉双解大词典》

youdao

In fact, the company claims there's a 30-40% speed increase (on average) over their previous beta version.

实际上，制作公司宣称，更之前的版本相比，新版软件运行速度的平均提升幅度在30% ~ 40%左右。

youdao

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

VOA: special.2009.10.14

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

Whenever you see a particle moving in a circle, even if it's at a constant speed, it has an acceleration, v square over r directed towards the center.

只要看到质点做圆周运动,即使是匀速圆周运动,也存在一个加速度,大小为 v^2 / r,方向指向圆心

耶鲁公开课 - 基础物理课程节选

How smart is Dagny and Ellis for not testing the steel themselves but they bravely ride a high speed train over a bridge made of it?

FORBES: Atlas Shrugged: Ten Lessons From Dagny Taggart

Dykes had been scheduled to appear in court Wednesday to answer charges he shot at his neighbors in a dispute last month over a speed bump.

NPR: Ala. Town Mourns For Bus Driver Amid Standoff

Other sources agree that the Red Bull and Ferrari are the two quickest cars, but say the Red Bull has a significant speed advantage over longer runs.

BBC: Nick Heidfeld heads Fernando Alonso at his Renault test