单词	perpetual motion
释义	perpetual motionperˌpetual ˈmotion noun [uncountable] Examples EXAMPLES FROM THE CORPUS And you were accusing me of being a perpetual motion merchant. Earthquakes line the borders of the tectonic plates and are symptoms of the perpetual motion inside our planet. It was in perpetual motion up to and including the moment they all sat in each other's seats. The brash internet entrepreneurs of a year ago seemed to think they had discovered the financial equivalent of perpetual motion. The cyclical exchange of payments for factors of production and payments for final goods becomes a perpetual motion machine. Then, my dear Summerlee, it is that most wonderful of devices: a perpetual motion machine! This administration is a perpetual motion mess. Within the Boundless, which is in perpetual motion, worlds, including our world, come into being and pass away. the ability of a machine to always continue moving without getting energy from anywhere else, which is not considered possible
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