In general, both direct and traversal access require knowledge of the internal node structure.
一般来说，直接存取和遍历存取都需要知道内部节点的结构。
The view can access the model getters, but it has no knowledge of the setters.
视图可以访问模型的读方法，但不能访问写方法。
Imagine a world in which every single person is given free access to the sum of all human knowledge.
想象一下一个每个人都能够自由获取人类知识的世界。
Regular access to understand the knowledge of extra-curricular physics.
经常上网了解物理学科的课外知识。
Imagine a world in which every single person on the planet has free access to the sum of all human knowledge.
想象这样的一个世界：让这个星球上的每个人都能自由地触及人类知识的总和。
We can also buy books, the benefits of better access to knowledge.
我们还可以购买书籍，这样的好处在于可以更好的获取知识。
We can also buy books, the benefits of better access to knowledge.
我们还可以购买书籍，这样的好处在于可以更好的获取知识。
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