There aren't any other hugely impressive features at this stage, but the new SDK does offer new gesture controls which weren't found in earlier versions.
SDK在最近也没有令人印象深刻的功能，但是此次新版本的SDK却增加了新功能，即手指控制体验，这是较早前版本中所没有的。
This "feature scope" is done prior to actual code and design, therefore, there is no risk that eliminating these features at this stage will generate errors or cost time.
这个“工作范围”在实际程序设计和设计之前就已经完成，因此，在这阶段消除这些工作不会产生错误，也不会浪费时间。
At this stage, the Development team has a clear picture of the main components of the system and what features are required to support them.
在这一个阶段中，开发团队对系统的主要构件，以及需要什么特性来支持它们有了一个清晰的概念。
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