背城借一

1.make one last stand before the city wall; be prepared to fight and die; fight to the death; fight to the last ditch; fight with a rope round one's neck; fight with one's back to the wall; make a last ditch stand before the city wall; make a spoon or spoil a horn; put up a desperate struggle; set one's back to the wall and fight in one final effort; stand at [turn to] bay

1.在自己城下跟敌人决一死战