Read the first paragraph and the last paragraph. Can you predict what the text might be about before reading the full text? N. b.

先看第一段和最后一段在你阅读前，你可以估计出文章大意吗？

youdao

I mean, you'll play with it in great-- with great delight this semester, you will see that backslash N is the standard in any text file for creating what we know as new line characters.

我是指，这学期，你们会很高兴-,和它打交道，同时你们也会看到,在任何文本文件里，反斜杠n已经是,换行的代名词了。

哈佛公开课 - 计算机科学课程节选

N And, in your text, it's E sub N.

在你的课本上，是E下标。

麻省理工公开课 - 固态化学导论课程节选