If you would like to flag them as private, because you just don't want your classmates to see what you're asking, you can certainly do that.

如果你想要把它们标志为私有的，不想让你的同学们,看到你问的问题，你当然也可以这样做。

哈佛公开课 - 计算机科学课程节选

Well, you can specify what's called a switch or a flag.

你们可以为它们指定开关或标志。

哈佛公开课 - 计算机科学课程节选

But just so you've been teased with them, "-ggdb" is a flag that's going to enable what are going to be called "debugging symbols."

但是你们刚才被他们忽悠了，“-ggdb“是用来使能“调试标志“功能,的一个标记“

哈佛公开课 - 计算机科学课程节选