A growing number of economists say the stimulus has indeed kept more Americans away from the unemployment lines.

VOA: standard.2010.06.18

It's more obvious because there are probably fewer lines there, so that you can focus on the primary line, the basic line--the bass line.

更明显的是这里也许有几条线，所以你可以将重点放在主线上，基准线，也就是低音线。

耶鲁公开课 - 聆听音乐课程节选

The curly braces to encapsulate one or more lines of code.

花括号压缩了一行或多行代码。

哈佛公开课 - 计算机科学课程节选

Yet increased recruitment of Asian-Americans doesn't mean that more are on the front lines.

VOA: standard.2010.07.14

So more succinctly, Player I and Player II, at this point where the lines cross, Player I and Player II are playing a best response to each other.

简单来说,参与人I和参与人II,在这两条线的交点处,互相都采用的是最佳对策

耶鲁公开课 - 博弈论课程节选

As an aside, if you ever just have one line of code that you want to execute, one puzzle piece in Scratch terminology, ; you actually don't need the curly braces; you only need the curly braces if you have two or more lines of code that you want to execute if that condition is true.

此外，如果你只有一行代码,需要执行，在Scratch，术语中叫做,一句代码，你就不需要使用花括号了;,如果那个条件成立，你有两行或更多行的代码时需要执行时,你就需要花括号。

哈佛公开课 - 计算机科学课程节选