veteran
/ˈvɛtərən/
a serviceman who has seen considerable active service
中文释义：老兵；退伍军人；经验丰富的人
The veteran shared his war stories with the young soldiers.
这位老兵与年轻士兵分享了他的战争故事。
She is a veteran teacher with over thirty years of experience.
她是一位有三十多年经验的老教师。