Speed is key at this point.

在这个时候速度是关键。

《牛津词典》

Eleven point two kilometers per second, at which satellites can be freed from the gravitation of the earth, is called "escape speed".

卫星以11.2千米每秒的速度前进可以脱离地球引力，这被称为“逃逸速度”。

youdao

What's the point in producing an engine that is big and powerful enough to go like 200 kilometers an hour when the speed limit is only 100?

如果车速限制是100千米每小时，生产一个足够大、足够强、时速能达到每小时200公里的引擎有什么意义呢？

youdao

But blood drops with long tails can tell a great deal about the direction, speed and angle of the blood's starting point.

VOA: special.2010.05.05

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

As they returned to the launch point at full speed following their outing, the RIB lurched, throwing Holly and her father out of the boat.

BBC: Holly Buchanan's remains found on Loch Lomond island

An accident investigator later examined the scene and estimated the speed at point of impact was between 30mph and 35mph which "must mean the approach speed would have been greater", said Mr Lamb.

BBC: Blackpool fatal crash driver 'used excessive speed'

Let me make a general point about high-speed rail as well as the way the infrastructure is being moved through the Recovery Act.

WHITEHOUSE: Creating New Jobs by Investing in High-Speed Rail