单词	air command
释义	air command noun : a unit of the highest echelon in the U.S. Air Force usually composed of two or more air forces Word History First Known Use 1948, in the meaning defined above
随便看	Francien Francis Francis Case, Lake francis fer Francis Ferdinand Francis I Francis II francis jo Francis Joseph I Francis of Assisi Francis of Sales Franciscan franciscanism franciscans Francistown francium franciums francized francizes francizing Franck franck-con Franck-Condon principle Francke franckeite

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