at daggers drawn
势不两立；刀光剑影
书面·形容关系极度紧张
英文释义
to be in a state of intense hostility or conflict
例句
The two neighbors have been at daggers drawn ever since the fence dispute.
典故来源
源自中世纪决斗时拔刀相向的场景，比喻双方处于激烈敌对状态。