少部分人相信，如同他们所作的跟以前一样，他们保证能让他们的父母比以前过的更好。

And few believe, as they once did, that they are guaranteed to be better off than their parents.

youdao

她没有大惊小怪—她以前全都见识过。

It didn't surprise her—she had seen it all before.

《牛津词典》

在当演员以前她唱过一阵子歌。

She had a spell as a singer before becoming an actress.

《牛津词典》

And the first thing you do is ask is it an instance of some problem that other people have already solved?

而且你以前从没碰过这个问题,你首先要做的一件事就是问问自己,这是不是一个别人已经解决了的问题？

麻省理工公开课 - 计算机科学及编程导论课程节选

I love doing because you're going to... you might find something that you didn't see the first time.

我喜欢这样做，因为你或许可以发现一些你以前没见过的东西。

大都会艺术博物馆 - SpeakingMax英语口语达人

And we can calculate that with the formula that we used, which was just n minus l minus 1 equals the number of nodes.

这个我们可以用我们以前用过的那个公式来计算，也就是节点数等于ｎ减去ｌ减去１

麻省理工公开课 - 化学原理课程节选