如果没有窗户，我无法察觉什么时候停车，什么时候我们在以300公里每小时的速度前进。

If there were no windows, I wouldn't be able to tell when we were stopped or when we were traveling at 300 km/h.

youdao

历经三年长途跋涉，穿越 21 公里的险途，以最高不到 0.2 公里每小时的速度，机遇号火星车终于成功抵达火星表面的奋进陨石坑。

Yesterday, after a 3-year, 21-kilometer journey at top speeds of less than 0.2 kilometer per hour, the Opportunity rover finally arrived at Mars's Endeavour crater.

youdao

大多数人步行的平均速度为每小时5公里。

Most people walk at an average rate of 5 kilometres an hour.

《牛津词典》

And Timlin who is about 91 miles per hour, Timlin So, why don't you take ten seconds to do that.

我们的继投手之一，能做到91公里每小时，one，of，our，relievers。,你们为什么不再花10秒钟,来做这道题？

麻省理工公开课 - 化学原理课程节选

So how do we get you from for many of you zero to 60 miles per hour after just 11 weeks, well like many courses here is the course structured around not only lectures for conceptual introductions, but sections, office hours and walkthroughs.

十一周后,很多人每小时都能知道60公里内发生的事情，就像这里的很多课程一样,这个课程不只有概念性的介绍，也包括上机和演练讲座。

哈佛公开课 - 计算机科学课程节选

Then we have Beckett who can get up 96 just on a regular old day.

然后贝克特以前通常能做到,96公里每小时。

麻省理工公开课 - 化学原理课程节选