单词	line of duty
释义	line of duty noun phrase : all that is authorized, required, or normally associated with some field of responsibility Word History First Known Use circa 1918, in the meaning defined above
随便看	departmentalising departmentalism departmentalisms departmentalization departmentalizations departmentalize departmentalized departmentalizes departmentalizing departmentally departmentation departmentize departments departs departure departure time departure track departure yard departure/arrival time departures depasturage depasture depastured depastures depasturing

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