释义
n.
a person who takes part in a public protest meeting or march
集会示威者，游行示威者。
a person who shows how a particular piece of equipment works or how a skill or craft is performed
演示者。
a person who teaches in this way, especially in a laboratory
演示教师，演示教学者。
a piece of merchandise which can be tested by potential buyers
样品；可试用样品。
类似拼写词
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demonstratorn.集会示威者；游行示威者；演示者；演示教师；演示教学者；样品；可试用样品
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demonstrationn.证明；证实；示威集会；示威游行；示范；演示；感情流露
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demonstratev.证明；证实；参加游行；演示；显示；表露；表现
词源
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