Object Invariants are conditions specified for each instances of a class.

对象不变量则为每个实例指定条件。

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Instances of a class have specific values for the properties defined at the class level.

一个类别的例证具有一个在类别层定义的特定属性值。

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Being instances of a class, these labels can have all the metadata you want to assign to them, which gives you a lot more flexibility.

作为类的实例，这些标签可具有所有想要为其指定的元数据，这将为您提供很大的灵活性。

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They are instances of a class, and associated with that class is a set of methods.

它们是同一个类的实例，与这个类相关联的是一个方法集,因此例如，我可以说。

麻省理工公开课 - 计算机科学及编程导论课程节选

These are instances of a class, and associated with that class are a set of methods things that I can deal with.

但是Python的基本思想是相同的，这是一些一个类的实例,这个类关联了一个方法集,我可以做的一些操作。

麻省理工公开课 - 计算机科学及编程导论课程节选

Now I have the ability to say, I've got a new class, I can create instances of a line segment, and it's elements are themselves instances of points. OK?

这就是我们要讲模块化的地方了，现在我可以说，我创建了一个新类，我可以创建线段的实例了,这些实例的元素？

麻省理工公开课 - 计算机科学及编程导论课程节选