That's it, the rest of the topic is just a code snippets without any details describing which attributes are important or how to use them.
如此而已，其它的主题无非是一些代码片断，对于哪些特性是重要的，或者如何使用它们，都没有任何详尽的描述。
In the previous article, you learned that we could define each of our services and wire them together without actually knowing the implementation details of any of the services.
在前一篇文章中我们了解到，可以在不知道任何服务的实际实现细节的前提下定义每个服务，并将其连接到一起。
Preschool children draw all parts of face and body already accurately, without forgetting details. Absence of any part of body guards.
学龄前的儿童画脸和身体部位已经非常准确，不会忘记画细节和缺少身体的任何防卫部分，画长长的手对这个孩子来说是害怕受到惩罚。
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