They would have appeared in the seventeenth century with line numbers because line numbers obviously facilitate the production of scholarly commentary and facilitate the study of those texts in the classroom.

它们与行数都出现在十七世纪,因为显然便于,学者写评论,还便于课堂上学习那些诗歌。

耶鲁公开课 - 弥尔顿课程节选

And we'll see innumerable error messages today and onward as with you working at home ends on the problem sets 'cause this is the way you learn.

我们将会看到数不清的错误信息,当你在家里做习题集的时候,这也是学习的一种方式。

哈佛公开课 - 计算机科学课程节选

For numbers, we had some variations; we had integers, we had floats.

对于数字来说我们学习了很多变量;,包括integer类型，包括浮点数类型。

麻省理工公开课 - 计算机科学及编程导论课程节选

But if we know that 65 is the int that maps to the capital letter "A," we've already seen verbally that you can convert letters to numbers and numbers to letters, and so here's the syntax with which we'll soon be doing that.

如果我们知道65是个整型数，对应的是,大写字母“A“，我们已经口头地说明,我们可以把数字转换为字符，字符转化为数字，所以这里就是我们将要学习的一种语法。

哈佛公开课 - 计算机科学课程节选