He says we do not want to have a mob that can turn violent, that is beyond the control of demonstration leaders.

VOA: standard.2009.03.15

But just to hammer home this point, if I could, we have time for one awkward demonstration.

但是这个时候为了再三强调到彻底的了解，如果可以的话，我们还有时间做一个不太好的示范。

哈佛公开课 - 计算机科学课程节选

And when she was a very old lady, she led a demonstration to try to protect her little part of France on the Italian border from being exploited by tourism, more about that at the end, and with her tractor she led this demonstration.

等她老了的时候,她发起一个反对在她家那片,意大利边境上的法国领土上开发旅游业的游行,到最后还有其他别的,她开着拖拉机领导了这次游行

耶鲁公开课 - 1871年后的法国课程节选

President Obama said the demonstration was held to underscore the importance of science and math education.

VOA: standard.2009.11.24

The books were to be turned into pulp. More history texts were burned the following day at another demonstration in Simferopol,the capital of Crimea.

VOA: standard.2010.03.17

"The important achievement of Apollo was a demonstration that humanity is not forever chained to this planet, and our visions go rather further than that and our opportunities are unlimited,".

VOA: standard.2009.07.16

We need to do more about jobs in this country, more to protect people's homes in this country and this demonstration is a means of bringing it to the government's attention,".

VOA: standard.2009.03.28

Iranian security forces are once again clamping down hard on an opposition demonstration in a Tehran cemetery called to honor those slain during weeks of unrest, following the June 12 election.

VOA: standard.2009.07.30