And then we do variety about their trips during the year, and all of those are led by students.

在接下来的一年，我们会开展各种远足活动，这些活动都是由学生自己领导的。

普林斯顿公开课 - 人性课程节选

Everything inside of the curly braces is the code I am writing.

所有在大括号里面的代码都由我们自己编写。

哈佛公开课 - 计算机科学课程节选

Well, for a thing called main which itself is a function but a function I wrote, a tool I am writing at the moment not like printf which someone else wrote long ago, I have to say where does main start, where does main end, and I do that by using these curly braces.

至于这个名曰main的函数,由我们自己写的函数，也是一个工具,只不过由我们自己编写，而不是像printf那样已经由前人写好了,我们必须要说明main在哪开始，在哪结束，这样我们就要用到大括号了。

哈佛公开课 - 计算机科学课程节选