几分钟之内，我们就以每小时350多公里的速度驶过铁轨。

Within minutes, we were passing over the rails at speeds of more than 350 kilometers an hour.

youdao

那人以每小时40公里的速度开车。

The man is driving as 40 kilometres an hour.

youdao

它在4500米的高空以每小时240公里的速度飞行。

It flies at 240 km per hour at a height of 4,500 meters in the sky.

youdao

So, first we have Matsuzaka at 94 miles per hour.

所以，首先我们知道松阪的,投球速度是94公里每小时。

麻省理工公开课 - 化学原理课程节选

The reason--unless you can take about eight hours to do it--because, the way you're going to do it is you're going to take a train that goes one hour and fifty-eight minutes to Paris, and then you're going to take another train that zips down here in about four hours to Bordeaux, but you're paying by kilometer.

除非你想坐八个小时的火车,因为,你要走的路是,坐上火车,先花一小时五十八分钟去巴黎,然后以很快的速度用四小时到这儿,波尔多,按公里计费

耶鲁公开课 - 1871年后的法国课程节选