Sometimes they give you the speed in miles per hour, kilometers per year, pounds per square foot.

有时候速度的单位是英里/小时,千米/年,英磅/平方米

耶鲁公开课 - 基础物理课程节选

Soldiers were expected to be able travel thirty kilometers per day, in full pack.

士兵一天可以行进30千米，在全副装备的情况下。

耶鲁公开课 - 新约课程节选

Versailles is only eighteen kilometers away.

凡尔赛离巴黎只有十八公里

耶鲁公开课 - 欧洲文明课程节选

But,the turbo-prof will be somebody who is assigned to Reims, and who takes the train there every day, or to Tours; but to Lyon also since this is only two hours, this is four-hundred kilometers.

不过涡轮教授被派到兰斯教书,他每天都要坐火车往返,抑或是去图尔斯,从这里去里昂要用两小时,这有四百公里

耶鲁公开课 - 1871年后的法国课程节选

Generally I can bear who is now Ambassodor said you need to have the engineers following 1 kilometers behind the troops when they entered to this areas to show the people that we were there, we were there to stay. That remains true.

我可以理解现任大使所说的,紧跟着军队之后，我们还需要工程师来建设这个国家,这些工程师进来之后，当地人民就知道我们在这里，我们要留在这里，而这也是事实。

普林斯顿公开课 - 国际座谈会课程节选

They used even a horseback relay that could go a hundred kilometers a day.

采用了马背接力的形式，一日可以行进100千米。

耶鲁公开课 - 新约课程节选