✔ 最佳答案
「自絕後路」怎說較合適?
自絕後路 = 自毀長城
English Idiom:
"burn your bridges", or
"burn your boats" (British English)
Meaning:
to do something that makes it impossible to return to the previous situation later
Example:
Think carefully before you resign—you don't want to burn your bridges.