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.
我靠自己学英语，我出去要是看到什么陌生的单词我就会问身边的人是什么意思。
I just learn English by myself, and I go everywhere. When I look at something, if it's a strange word, I'll ask someone.
那些不陌生的单词是什么意思？
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