柯林斯词典petty officer (petty officers) 1. N-COUNT/N-TITLE A petty officer is an officer of low rank in the navy. (海军)士官 返回 petty officer剑桥词典a rank in a navy , below the officers but above the ordinary sailors 海军军士 Chief Petty Officer （美国海军）三级军士长；（英国海军）上士 返回 petty officer