n.示威者；示范者
Noun:a teacher or teacher's assistant who demonstrates the principles that are being taught
someone who demonstrates an article to a prospective buyer
someone who participates in a public display of group feeling
以上就是本站详细整理的词语demonstrator是什么意思的翻译解释，供大家参考一下。
An overalled woman demonstrator was exhibiting the merits of a patent coffee-strainer.