Now, you might in some context have to add the right kind of parentheses so that GCC or your compiler doesn't get confused, but really they just reverse each other's processes.

现在，你可能要在相应的地方,加入一些圆括号,这样GCC或编译器就不会误解你的意思，但是它们颠倒了相互的过程。

哈佛公开课 - 计算机科学课程节选

The only thing that compiler needs to know is kind of what pattern to look for in the rest of your code.

编译器需要知道的唯一的东西是,用来在剩下的代码中寻找的函数形式。

哈佛公开课 - 计算机科学课程节选

But the take away for now is that if you don't clue -lcs50, -- you get some mention -- some error message -- about "undefined symbol," and that should be your clue that, "Oh it's undefined in that I haven't told the compiler that I want to link in these zeros and ones."

但现在如果你删除“-lcs50“,你们会得到一些提示--一些错误信息-,像“未定义的符号“，这可以为你提过线索，“这个没有被定义，我没有告诉编译器,把想把这个与“1“和“0“建立连接，“

哈佛公开课 - 计算机科学课程节选