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	jumby tree jumelle jumelles jument juments jumma Jumnapari jump jump (on) jump all over jump at jump bail jump ball jump bid jump boot jump cut jump dam jump down someone's throat jump fire jump for joy jump head jump hook jump in jump in a lake jump in at the deep end

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