他对如下两点做了对比。

He compared two things.

youdao

我们的简报也对核能和航空产业的安全记录做了对比。

Our briefing also compared the safety record of nuclear power to the airline industry.

youdao

该研究还把当今的音乐与过去的音乐做了对比，回顾了歌剧风靡一时的时代。

The study went on to compare today's music to that of the past, dating back to the time when opera was all the rage.

youdao

And you get the idea. What am I going to do next? I'm going to compare three against four.

我接下来将要怎么做了？,我要拿3和4进行对比，3是小的一个。

麻省理工公开课 - 计算机科学及编程导论课程节选

So now that we can do this, we can compare and think about, we know how to consider wave functions for individual electrons in multi-electron atoms using those Hartree orbitals or the one electron wave approximations.

现在我们可以做这些了，我们可以对比和考虑，我们知道如何用哈特里轨道,或者单电子波近似去考虑,多电子原子中的单个电子波函数,所以对于我们研究了。

麻省理工公开课 - 化学原理课程节选

It puts together the experience with tobacco and the experience with diet, to talk about how countries might see this problem coming and doing something about it.

它把发生在香烟和饮食上的,事情放在一起进行对比,讲述了国家是如何发现问题,并做一些事情来解决问题

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选