| 单词 | practical demonstration |
| 释义 | practical demonstration It was a practical demonstration of their faith in the future. Times, Sunday Times He won, by way of practical demonstration. Times, Sunday Times Initiatives like these could provide a practical demonstration of the capacity of the comprehensive principle to deliver the highest-quality education, and build support for its extension. The Times Literary Supplement His ground-breaking work on the refractive index of unusual materials led him to the theoretical suggestion - and practical demonstration - that radiation can be deflected around an object, rendering it invisible. Times, Sunday Times He could answer virtually any question and illustrate his answer with a practical demonstration. Times, Sunday Times |
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