单词	rolling friction
释义	rolling friction noun : resistance to motion by bodies that are in rolling contact Word History First Known Use 1839, in the meaning defined above
随便看	grand-ecoys grand-scale grandad grandaddies grandaddy grandads grandam grandame grandames grandams grandaunt grandaunts grandbabies grandbaby grandchild averagenesses averages averages out averaging averaging out averment averments avernal avernian Avernus, Lake

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