"There are intelligence inputs that CPI Maoists may indulge in demonstrative acts of violence by targeting security forces and economic infrastructure, such as trains,buses,railway stations, bus stations and other places where people are likely to gather,"

VOA: standard.2009.06.21

Now, you know how to make women do worse on math tests too, like that, and this has a demonstrative effect.

你们也知道怎么让女同学考数学考不好，像这样，这样的作用非常显易而见。

耶鲁公开课 - 心理学导论课程节选

I think we can see demonstrative from these charts, that man has done a rather admirable job of imitating the human brain.

我觉得我们可以从这些图表中看到一些说明，人们做了一个非常令人钦佩的工作,来模仿人类的大脑。

哈佛公开课 - 计算机科学课程节选