单词	jackstaff
释义	jackstaff /ˈdʒakstɑːf / noun A short staff at a ship’s bow, on which a jack is hoisted.Navy ships not under way also hoist and lower the union jack on the jackstaff, at the ship's bow, and at morning and evening colors.... Navy ships not underway fly the union jack on the jackstaff. The union jack is also flown from a yardarm to denote that a general court-martial is in session.
随便看	pupil-master pupil-monger pupil nurse pupilometer pupil power dispensability dispensable dispensary dispensation dispensational dispensationalism dispensationalist dispense dispenser dispense with someone's services dispensing chemist dispensing optician dispersal dispersant disperse disperser dispersible dispersion dispersive dispirit

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