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原指臣子先把人处决了,然后再报告帝王。现比喻未经请示就先做了某事,造成既成事实,然后再向上级报告。
[execute the criminal first and report to the emperor afterwards—act first and report afterwards] 指执法官先处决罪犯,然后向上奏闻。借以比喻先采取行动,然后再上报 随处审囚刷卷,体察滥官污吏,容老夫先斩后奏。——《元曲选·窦娥冤》