名词
中文翻译：Unknown
同义词：
['demonstration', 'display例句：1. The teacher demonstrated how to solve the problem using a diagram.（老师用图示演示了如何解决这个问题。）']
例句：
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1. The teacher demonstrated how to solve the problem using a diagram.
老师用图示演示了如何解决这个问题。
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2.The new product is being displayed at the exhibition hall.
新产品正在展览厅展出。
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3. The demonstration was very helpful in explaining the complex process.
演示非常有助于解释复杂的过程。