back to the wall
陷入困境、危機或逆境, 背水一戰
書面/口語·表示陷入絕境背水一戰
英文釋義
to be in a difficult or desperate situation with no easy way out
例句
With his back to the wall, he had to take the risky deal or go bankrupt.
典故來源
源自戰場或格斗場景，當士兵背靠墻壁時，已無退路，只能拼死一搏，比喻絕境中的最后掙扎。