理解后现代主义的最佳方法就是参考在这以前的流行派别：现代主义。

Well, the best way to begin to understand postmodernism is with reference to what went before: modernism.

youdao

这两年，象两个山头似的出现在这以前的几年和这以后的几年之间。

These two years rise like two mountains midway between those which precede and those which follow them.

youdao

在这以前，她一向满足于望着他穿过大路，从不想到要去和他打个照面。

Up to that time, she had contented herself with watching him on his passage along the boulevard without ever seeking to encounter him.

youdao

We're exposed to things that might cause cancer where weren't exposed to them before and so that might be a reason.

我们暴露于可能致癌的物质中,这些物质在以前是没有的,这可能就是原因之一

耶鲁公开课 - 生物医学工程探索课程节选

For instance in the past, we had that silly little program for computing the average of some quizzes and it was actually a pretty bad implementation because I had essentially hard coded in the number of quizzes.

比如在以前，我们做了一个,计算平均数的程序,这是一个相当挫的实现,因为我硬编码了测试的数字。

哈佛公开课 - 计算机科学课程节选

This was known for a long time, but it took Mr. Einstein to figure out why nature is behaving in that fashion.

这一点在很早以前就人所共知了,不过是爱因斯坦先生解释了,大自然为什么以这种模式运行

耶鲁公开课 - 基础物理课程节选