We saw, associated with that primitive data, we have ways of taking data in and creating new kinds of data out, or new versions of data out, so we have operations.

我们可以取得输入的数据然后，创建新的类型的输出数据,或者新的版本的输出数据,这就是我们说的操作。

麻省理工公开课 - 计算机科学及编程导论课程节选

And that in essence says, I've just created the equivalent of a new primitive.

这就是说我创建了,一种新的原语。

麻省理工公开课 - 计算机科学及编程导论课程节选