make a clean breast of
坦白承认，公开透露
正式·表达坦白或承认错误
英文释义
to confess or make a full and honest disclosure
例句
He finally made a clean breast of his mistake and felt much better afterward.
典故来源
源自旧时‘breast’指内心或良心，意为彻底坦白以求得心安。