单词	tackboard
释义	tackboard noun tack·​board ˈtak-ˌbȯrd  : a board (as of cork) for tacking up notices and display materials Word History First Known Use circa 1927, in the meaning defined above
随便看	radar detectors radar gun radar telescope radarman radarmen radars radarscope radarscopes Radcliffe radded radder raddest radding raddle raddled raddleman raddlemen raddles raddling rade raden Radetzky radi- radiac radial

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