lieutenant commander

lieutenant-commander的词性：
n.Abbr. Lt Comdr（名词）缩写 Lt Comdr

1. A commissioned rank in the U.S. Navy or Coast Guard that is above lieutenant and below commander.
海军少校：美国海军或海岸警卫队的军衔，高于海军上尉，低于海军中校

2. One who holds this rank.
海军少校：有此军衔的人