I went from this description, it gives me some information. I need to have a particular type.

我从这些描述出发，它给了我一些信息,我需要一些特定类型的数据。

麻省理工公开课 - 计算机科学及编程导论课程节选

I made sure I had the particular type.

我确定了我获得的是这个类型的数据。

麻省理工公开课 - 计算机科学及编程导论课程节选

And I don't quite remember from reading or from class how big these things are, well, it turns out -- and this is sometimes useful, later on more likely than now -- but C has a size of operator that takes an argument in parenthesis and it will tell you how much space is used to store that particular data type.

我不太记得类中的这些类型,是多大的，嗯，结果是--这个在以后比现在，可能是更有用的--不过C语言中有个sizeof的操作符,其中括号里有一个参数,它会告诉我们，要存储一个类型的数据,需要占用多大空间。

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