under your belt
经验或技能已掌握或获取
口语·指已积累的经验或成就
英文释义
having achieved or accomplished something
例句
With three years of experience under your belt, you'll be ready for the promotion.
典故来源
源自饮食文化，食物吃进肚子里（腰带以下）即表示已获得或完成。