PMNa soldier who serves on a ship, especially a member of the Royal Marines or the US Marine Corps 水兵;英国皇家海军陆战队士兵;美国海军陆战队士兵
Examples from the Corpus
Marine• The two injuredMarines were the pilot and co-pilot of the Sea Knight.• Even its uniforms are modelled on those of the Royal Navy. Marines have trained here.• He got a letter from his brother Robert, his full brother, who was still in the Marines.• Last I heard he went into the Marines.• The MarineCommandos were well dug in in a wooded area just off the road and close to the village.• The Marine position was very similar to where I was dug in.• The Marines have vowed to continue holding annual air shows, starting next summer.
From Longman Business Dictionary
marinema·rine /məˈriːn/adjectiveadj [only before a noun]