sell somebody/yourself short
成語所屬單字sell
sell somebody/yourself short — 慣用語
1. To underestimate the value or ability of someone or yourself.
1.慣用語
釋義
低估（某人或自己）
To underestimate the value or ability of someone or yourself.
例句
Don't sell yourself short; you are more qualified than you think.
The coach sold the player short by not letting him play.