从此以后，当你说，声明一个函数，我在这里声明了一个函数，但是到这里我定义它或执行它。

So now, henceforth, when you say, to declare a function, I am declaring a function here but down here am I quote unquote defining it or implementing it.

youdao

再次声明这仅仅是一个队列对象的函数。

Once again this is really just a function on the queue object.

youdao

不管在哪里声明一个变量或函数，extern关键字都允许其他文件在不确定其定义位置的情况下使用该文件。

No matter where you declare a variable or function, the extern keyword allows other files to use it without knowing where it was defined.

youdao

So now, henceforth, when you say, to declare a function, I am declaring a function here but down here am I quote unquote defining it or implementing it.

从此以后，当你说，声明一个函数，我在这里声明了一个函数,但是到这里我定义它或执行它。

哈佛公开课 - 计算机科学课程节选

So in return to, we have a slight variance here, -- where I'm defining apparently -- declaring a function called cube.

作为应答，这里我们有一点变化，这里我显然定义了-,声明了一个叫做cube的函数。

哈佛公开课 - 计算机科学课程节选

Well, simply with the * notation at least on the way in when you declare the function called swap, you simply say this is not going to take an int and another int because that's useless.

好的，简单说，当你声明一个函数调用swap函数时,使用*符号，你可以简单说，这不能使用一个int数和另外一个int数,因为那是无效的。

哈佛公开课 - 计算机科学课程节选