abbr. Office of Systems Engineering and Management <美>(FAA)
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archosaur, Archosauria, Archostemata, archpriest, archrival, archway, archwise, archy, arcifera, arcifinious,
相似单词
osculometer, osculum, OSD, OSE, OSEE, OSEM, Oser, OSes, OSF, OSFCW,