元数据表引用其他的表和堆。

Metadata tables reference other tables and heaps.

youdao

尽管单例实现使用的是子类的类名，其他的模式（比如稍后介绍的活动记录模式）需要引用其他的静态属性。

Whereas the singleton implementation uses the subclass's class name, other patterns (such as active record, covered later) need to reference other static properties.

youdao

作为经济学家，他的著作被引用的次数比世界上任何其他经济学家都要多。

His works are more cited as an economist than any other economist in the world.

youdao

I'm using it as an abstraction, saying I'm going to have square root from somewhere, maybe I'll build it myself, maybe somebody gives it to me a s part of a library, so I'm burying the details inside of it.

我把这个方法作为一个抽象来引用，意味着我将会从另外一个,地方去求一个数的平方根，可能我会自己写这个方法,也可能我会从别人写的lib中去引用,因此我将实现的细节放到了其他地方。

麻省理工公开课 - 计算机科学及编程导论课程节选