单词	turtleback
释义	turtleback noun tur·​tle·​back ˈtər-tᵊl-ˌbak  : a raised convex surface turtleback adjective or turtle-backed ˈtər-tᵊl-ˌbakt  Word History First Known Use 1872, in the meaning defined above
随便看	roller-skating roller-top roller-up rollerballs Rollerblade rollerbladed rollerbladers rollerblades rollerblading rollercoasters rollerman rollermen rollers rollers-up rollerskatings rollick rollicked rollicker rollicking rollickingly rollickings rollicks rollicksome rollicksomeness Rollin film

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