burn your bridges
US /bɜrn jʊər ˈbrɪdʒɪz/
UK /bɜrn jʊər ˈbrɪdʒɪz/

1.
斷絕後路, 破釜沉舟
to do something that makes it impossible to return to an earlier state or relationship
:
•
By quitting his job so angrily, he really burned his bridges with that company.
他如此憤怒地辭職,真是斷絕了與那家公司的所有聯繫。
•
Think carefully before you act; you don't want to burn your bridges.
三思而後行;你不想斷絕後路。