He warns that even though Google may start out by not charging for access to what it digitizes, it may eventually impose big fees to use its online library.

VOA: standard.2009.12.31

Always provides you with access to the math library because that's useful, too, so you don't always have to remember that.

总是能够让你能够使用数学程序库,那也是有用的，所以你不一定要把它记住。

哈佛公开课 - 计算机科学课程节选

So just in case I happen to use the CS50 library, we've configured the cloud in such a way that make just always provides you with access to it.

所以万一我碰巧使用了CS50程序库，我们用这种方法配置了联网,那样我们就有使用它的权利了。

哈佛公开课 - 计算机科学课程节选

- Well -- and I'll fix this blue next time -- I'm first telling the compiler I need access to the standard io library because printf is declared there.

哦！--下次我把这个字体颜色改成蓝色的-,我先告诉编译器--我需要使用,标准输入输出库,因为printf在那个库里面申明的。

哈佛公开课 - 计算机科学课程节选