An Edge is a line segment, and you add Edge objects to a design through the add_line method of the Entities class.

Edge是一条线段，可以通过entities类的add_line方法将Edge对象添加到设计中。

youdao

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？

youdao

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？

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