海军陆战队 hǎijūnlùzhànduì marine corps Definitions Defs Origin Strokes Stroke Words Sentences Sents 海军 海軍 hǎijūn noun navy The branch of a country's military forces that fights at sea; typically composed of surface fleets, naval aviation, and marines.陆战队 陸戰隊 lùzhànduì noun marines marine corps; a military branch specifically trained for landing and ground combat operations; usually refers to 海军陆战队 hǎijūnlùzhànduì