名词
中文翻译：跳跃装置
同义词：
['jumping machine', 'leap apparatus']
例句：
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1.The scientists designed a new hop apparatus to test the theory.
科学家们设计了一种新的跳跃装置来测试这个理论。
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2.The children were thrilled to be able to hop around the playground with their friends.
孩子们很高兴能够和朋友们一起在操场上蹦跳。
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3. The engineers used the hop apparatus to simulate the impact of an earthquake on buildings.
工程师们使用跳跃装置来模拟地震对建筑物的影响。