不过，这一基于任务的语言学习需要研究者设计系统时做出一些调整。
But the idea — known as task-based language learning — required a few changes as the researchers were designing the system.
在本系列中，您将学习如何使用先进的Xforms来创建X - Trapolate，一种专为企业设计、基于Xforms的在线会计工具。
In this series, you'll learn how to use the great advances made by XForms to create X-Trapolate, an XForms-based online accounting tool designed for businesses.
这是因为Alice是一种基于图形界面的交互式三维编程环境它不仅仅是为了帮助学习编程而设计的Alice使学习编程成为一种乐趣。
Because Alice is an interactive graphic 3d programming environment, it is not only useful for learning how to program, Alice makes learning to program fun.
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