once a…, always a…
成語所屬單字always
once a…, always a… — 慣用語
1. Used to say that a person's basic nature or identity never changes.
1.慣用語
釋義
一日為……，終身為……
Used to say that a person's basic nature or identity never changes.
例句
Once a teacher, always a teacher; she still tutors kids.
Once a runner, always a runner; Diego jogs every morning.