You need multiple lines of code, you need these days to use something called a scanner class.

你需要写许多代码,你要学会使用扫描仪。

哈佛公开课 - 计算机科学课程节选

What this means is that if you miss a class you need to get notes, and so you should get them from a friend or from the person sitting next to you.

这也就意味着,如果你落下了一节课,你就要看笔记,你可以向朋友或者身边的同学借来看

耶鲁公开课 - 心理学导论课程节选