n.示范；表达；实证；示威游行

She gave us a demonstration of the machine to show us how it worked. 她为我们做了示范来说明那台机器的用法。

Our showrooms, situated in the business center, offer admirable facilities for display and demonstration. 我们的陈列室位于商业中心，可为商品陈列与示范操作提供非常有利的条件。

The professor will give a demonstration in class. 教授将在课上进行示范。

"What a wonderful demonstration!"she exclaimed. “多么奇妙的一次实证啊！她大声嚷着。

The police were present at the demonstration in (full) force. 警方派出大队人马在示威游行的现场戒备。

They made a huge demonstration against the government. 他们举行了一次声势浩大的反政府示威。

The police said over 100,000 people had taken part in the demonstration. 警方说参加游行示威的人超过十万。