单词	R and D
释义	R and D abbreviation or noun ˌär-ən-ˈdē : research and development Word History First Known Use 1952, in the meaning defined above
随便看	expedientist expediently expedients expeditate expeditated expeditates expeditating expeditation expeditations expedite expedite freight expedited expedited freight expediter expediters expedites expediting expedition expeditionary expeditioner expeditionist expeditions expeditious expeditiously expeditiousness

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