demonstration

英 [demən'streɪʃ(ə)n] 美[,dɛmən'streʃən]

• n. 示范；证明；示威游行

1. a show or display; the act of presenting something to sight or view;

"the presentation of new data"

"he gave the customer a demonstration"

2. a show of military force or preparedness;

"he confused the enemy with feints and demonstrations"

3. a public display of group feelings (usually of a political nature);

"there were violent demonstrations against the war"

4. proof by a process of argument or a series of proposition proving an asserted conclusion

5. a visual presentation showing how something works;

"the lecture was accompanied by dramatic demonstrations"

"the lecturer shot off a pistol as a demonstration of the startle response"