形容词
中文翻译：说明的
同义词：
['illustrative', 'demonstrative']
例句：
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1.The teacher used illustrations to explain the concept of gravity.
老师用插图来解释重力的概念。
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2. The book is filled with vivid illustrations that make it easy to understand.
这本书充满了生动的插图，使得理解起来变得容易。
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3. The artist used a variety of materials to create these illustrative drawings.
艺术家使用各种材料来创作这些说明性的绘画。