demonstrator
'demәnstreitә
基本解释
n. 论证者, 证明者, 指示者, 示威者
[医] 示教者
英文释义
n. a teacher or teacher's assistant who demonstrates the principles that are being taught
n. someone who demonstrates an article to a prospective buyer
n. someone who participates in a public display of group feeling
词形变化
上一个单词：demonstratives
下一个单词：demonstrators