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.

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。

youdao

This is the first demonstration project in medical Internet of Things.

这也是全国第一个医疗物联网的示范工程。

youdao

This is the first demonstration of doing the full shebang, running it under (light) photons in a reactor.

这是第一个光照下工作并且在一个反应器中完成所有过程的示例。

youdao

Its capacity to sweep aside international objections was the first demonstration of its new-found strength.

BBC: Thatcher's fight against German unity

It is the first demonstration that a drug will kill the adult worm.

BBC: River blindness 'breakthrough'

Realizing a first demonstration project has been tricky for Mr. Palella.

WSJ: Unlocking Africa's Energy Potential