单词	Staff Duty Officer
释义	Staff Duty Officer 值班参谋
随便看	Population of one million population population of parameter population of parameters population of poverty population of product cases population of residence booklet populationof role population of rotational levels population of samples population of satellites population of the old population of the right age population of upper level population of urban residents population of voting age Population of wheat population oomposition population operator population opportunity window population optimum Population,Optimum population organization of united nations population oriented type population origin population outbreak