burn brides 字面意思烧桥，引申为过河拆桥；破釜沉舟；自绝退路。

【例句】
Don't burn bridges you may have to cross again.
不要过河拆桥，你可能要再使用它。

Sara has decided to burn bridges with her hot-tempered boyfriend.
莎拉决定和脾气暴躁的男朋友断绝联系。