dem·on·stra·tor 
(dĕmən-strā′tər)
(dĕmən-strā′tər)n.
1. One that demonstrates, such as a participant in a public display of opinion.
2. An article or product used in a demonstration.
| 单词 | demonstrator |
| 释义 | dem·on·stra·tor (dĕmən-strā′tər)n. 1. One that demonstrates, such as a participant in a public display of opinion. 2. An article or product used in a demonstration. |
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