先斩后奏的英文：
[Literal Meaning]
first/execute/later/report
to execute first and report later

[解释]
指对某个问题未经请示就处理了，先造成既成事实，然后再向上级汇报。

[Explanation]
said of a person who acts without first getting the approval of his superior, or who reports to the higher authorities only after his action has become an accomplished fact

[例子]
这件事你没有请示就擅自做主了，你这种先斩后奏的做法破坏了公司的规定。

[Example]
You did this without any approval. Such action that acted first and reported afterwards broke the company's regulations.

To execute first and report afterwards
先斩后奏