这是第一个演示，我们可以选择孩子将学习什么单词，而孩子可以用陌生的声音在陌生的环境下给出指令回应单词。
This is the first demonstration that we can choose what words the children will learn and that they can respond to them with an unfamiliar voice giving instructions in an unfamiliar setting.
ASDI中已经开始有对使用迭代开发方法的担心的声音了，并且他们需要看到能够在项目中产成系统演示的具体进展的保证。
ASDI had already voiced concern about using an iterative approach, and they needed to see some guarantee of concrete progress in a mid-project demo.
音频是琴声与演示者声音的交替。
The audio is the sound of the piano interspersed with the voice of the presenter.
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