名词
中文翻译：永动机
同义词：
['indefinite motion machine', 'perpetual engine', 'perpetual-motion machine']
例句：
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1. The inventor of the perpetual motion machine was a genius.
发明永动机的发明家是一个天才。
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2.The perpetual motion machine has been proven to be impossible by science.
永动机已被科学证明是不可能的。
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3. The perpetual motion machine is still an intriguing concept in science fiction.
永动机在科幻小说中仍然是一个引人入胜的概念。