a clean bill of health
健康证明，表示一个人没有任何健康问题或疾病的证明
书面/口语·确认健康或良好状态
英文释义
official or formal statement confirming that someone or something is healthy, in good condition, or free from any negative or harmful factors
例句
The doctor gave me a clean bill of health after the check-up.
典故来源
源自航海术语，船只离港需出示无疫病证明。