第四部分，我国英语学习类期刊的生存环境与发展趋势。
Part 4: The living environment and the development trend of English learning periodicals in China.
这包括学习类的(例如：考试的日子和作业安排)和管理类的(例如：申请截止日和课外活动的要求)。
This includes both the academic (e.g., test dates and assignment schedules) and the administrative (e.g., application deadlines and demands from extracurricular involvements).
本文旨在把握我国英语学习类期刊的整体情况，剖析英语学习期刊的成功经营策略，并分析和预测未来发展趋势。
The paper is to grasp the general status quo of English learning periodicals in China, anatomize the successful management tactics, and analyse and forecast their developing trend in the future.
有些“一日一词”之类的语言学习类应用可能看着挺方便，但实际上呢，他们杂乱无章地把一堆毫无联系的词汇摆到你面前，比如：信封、疲惫、一月、接受、洋葱等等。
Those one-word-a-day language learning apps may feel convenient, but thematically, they're all over the place, delivering a chain of unrelated words: envelope, tired, January, receive, onion.
后来，我提出了一个更广泛的理论来区分这两类常见的学习者——无助型和掌控型。
Later, I developed a broader theory of what separates the two general classes of learners—helpless versus mastery-oriented.
大多数研究都集中在类人猿身上，发现它们在社会学习、使用工具和其他类人文化的要素方面非常熟练。
Most research has foucus on simian animals and found them to be highly adept in social learning, tool use, and other essentials of human-like culture.
那家商店卖诸如铅笔、橡皮擦、尺子一类的学习用品。
The shop sells school things, like pencils, erasers and rulers.
“人们对职业教育类的学校有这种刻板印象，即认为这类学校是为学习不好的孩子开设的。”他说。
"Schools in the family of vocational education have that stereotype, that it's for kids who can't make it academically," he says.
说实话，该书的作者是非常的喜欢UML类图，所以如果你感觉这样有助于学习，你会喜欢上这本书的。
The author of this book really likes Unified Modeling Language (UML) class diagrams, so if you find those helpful in learning, then you’ll like this book.
在这篇文章中，学习了不同的类装入异常，从最基本的错误到一些更神秘的错误。
In this article, you learned about the various class loading exceptions, from the most basic errors to some more cryptic ones.
在这篇文章中，学习了一些在类装入中可能发生的更复杂的问题。
In this article, you learned about some of the more intricate problems that can occur in class loading.
没有任何书是关于几天学习贝多芬或量子物理的，甚至连犬类装扮都没有。
There are no books on how to learn Beethoven, or Quantum Physics, or even Dog Grooming in a few days. Felleisen et al.
清单9显示了完整的操作类代码，不只是改变项目描述的片断，这样我们可以学习为第二版插件创建的一些实用方法。
Listing 9 shows the complete action class code, not just the segment that changes the project description, so we can learn about some utility methods created for the second revision of the plugin.
在这篇文章中，学习了JVM中类装入的基础知识和IBMJVM中可以使用的调试特性。
In this article, you learned the fundamentals of class loading in JVMs and the debugging features available in the IBM JVM.
在德国比勒菲尔德大学，通过计算机相连，类人机器人BARTHOC和机器手一同协作，向人类学习。
Linked through a computer, the humanoid BARTHOC and a pair of robotic hands team up to learn from humans at Germany's Bielefeld University.
因为它直接从xml语法映射到类，很容易学习、使用和调试。
Because it's a direct mapping from XML syntax to classes, it is very easy to learn, use, and debug.
我们还得以学习打包应用程序以及上传新版本的类库，以应用于ubuntu代码库。
We also get a chance to learn to package applications and upload new versions of the libraries we use to the Ubuntu repositories.
“犬类当中似乎并没有任何社会学习，”Tennie说。
"There doesn't seem to be any social learning in dogs," said Tennie.
面向对象的方法固然方便，但由于用类对底层Win32函数调用进行了封装，它不利于学习服务程序的基本知识。
The object-oriented approach was convenient, but since calls for low-level Win32 functions are encapsulated by class, it is insufficient for learning about the essence of the Services.
然后，您将学习如何创建一个更复杂的扩展，可以修改一个已有ExtJS类的功能以及添加一些新特性。
You will then learn how to create a more complex extension which changes the functionality of an existing Ext JS class and adds some new features.
您将学习Groovy集合、groovy类，当然还有Groovy的语法。
You will learn about Groovy collections, Groovy classes, and, of course, the Groovy syntax.
到这里为止，我们学习了如何声明一个类，如何初始化它们，以及继承的一些基础。
So far, we've covered how to declare classes, how to instantiate them, and some of the basics of inheritance.
曾经，很久以前，有个农夫起早摸黑的干活，为了让他的儿子能过在一个城堡学习文书类的工作。
Once, long ago, this farmer worked his fingers to the bone so his son could learn to be a clerk at the castle.
您也学习了如何定义新的属性，在子类中调用相应函数，以及如何在您的应用程序代码中使用这个新类。
You learned how to define new properties and call corresponding functions in the superclass and how to use the new class in your application code.
不过这一类学习可能会非常强大，因为它假定没有事先分类的样本。
But this kind of learning can be powerful because it assumes no pre-discovered classification of examples.
您得花些时间去学习上述类中所包含的字段和方法。
You should spend some time studying the fields and methods included in the classes mentioned above.
把他们统统都笼统的归位一类，相当于让孩子错过一个学习机会的珍贵宝藏。
To clump them all into one category is to miss out on a huge treasure trove of learning opportunities.
要编写分布式应用，程序员必须学习和使用针对跨层通信、数据编制、同步和安全等领域的底层类库。
To write distributed applications, programmers must learn and use a large variety of lower-level libraries for cross-tier communication, data marshaling, synchronization, and security.
一套帮助开发人员学习编写机器人应用程序的技术类库服务和范例。
A set of useful technology libraries services and samples to help developers get started with writing robot applications.
有两个主要的类需要了解以学习这些服务的设计模型：会员类于角色类。
There are two main classes you'll want to examine to learn the programming model for these services: Membership and Roles.
应用推荐