Now when the only types we're dealing with are the built-in types, the ones that came with the programming language, that doesn't really matter.

现在我们对付的数据类型,只有内置的数据类型,也就是编程语言固有的类型。

麻省理工公开课 - 计算机科学及编程导论课程节选

Well basically what we're doing is we're giving ourselves the ability to create data types the same way that we have some built-ins, so we have things like int, float, string, these are built-in data types.

就是要赋值我们自己创建,和内置的数据类型,相同的数据类型的能力,我们有一些内置的数据类型，如int，float，string等，如果你考虑下这些数据类型。

麻省理工公开课 - 计算机科学及编程导论课程节选