But odds are it's not sufficient just to get it from the user, I, the human need to be handed whatever this function got from the user in some form.

如果只是从用户，我这里获取，好像有点不太准确，我们得交出,该函数从用户那里得到的一切信息。

哈佛公开课 - 计算机科学课程节选

Someone-- or someone had to implement, had to write a tool called printf that itself takes input between quotes and produces as output some characters on the screen.

需要有人去实现，这个printf函数,以双引号间的信息为输入,输出相应字母到屏幕上。

哈佛公开课 - 计算机科学课程节选