以前上学是拿钱混日子，现在工作在拿日子混钱。

Before going to school is to take money indignities, now working in the day to mix with money.

youdao

午餐盒对于以前在城里上学的孩子来说并非必需品。

Lunch containers were not necessary for school kids in cities.

youdao

最里面的一圈以前是学校，现在孩子们都到外面上学。

The inner ring of buildings once housed classrooms. Now children go outside for school.

youdao

Sure. I used to read when I was a student every day.

当然了。我以前上学的时候,每天都会看这份报纸。

普林斯顿公开课 - 国际座谈会课程节选

So it's really neat to think that your counterparts 100 years ago right here at MIT could have been sitting in a class where they had Lewis as their lecturer, and he's putting forth these ideas -- these are actually his lecture notes, even though it wasn't even published yet, and giving this idea of Lewis structure, which is exactly what we keep using today in order to make a lot of these predictions.

因此会有很棒的感觉，当想一想一百年以前像你们一样,在这上学的同学可能正坐在教室里,听路易斯讲课，而他正在提出这些想法-,-而这些正是他的课堂讲义，尽管当时还没有发表，但已经给出了路易斯结构的思想，这正是我们直到今天都一直在用的,用它来做很多预测。

麻省理工公开课 - 化学原理课程节选