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英语翻译A bolt comes loose from underneath an elevator that is moving upward at a speed of 4.2 m/s.The bolt reaches the bottom of the elevator shaft in 3.7 s.
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英语翻译
A bolt comes loose from underneath an elevator that is moving upward at a speed of 4.2 m/s.The bolt reaches the bottom of the elevator shaft in 3.7 s.
英语翻译
A bolt comes loose from underneath an elevator that is moving upward at a speed of 4.2 m/s.The bolt reaches the bottom of the elevator shaft in 3.7 s.
A bolt comes loose from underneath an elevator that is moving upward at a speed of 4.2 m/s.The bolt reaches the bottom of the elevator shaft in 3.7 s.
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