up a tree
陷入困境，无法解决问题
口语·描述进退两难
英文释义
to be in a difficult or problematic situation; to be in a state of uncertainty or confusion
例句
He left me up a tree when he quit without notice, and I had to finish the project alone.
典故来源
源自狩猎场景：猎物被逼上树后无路可逃，比喻陷入被动或尴尬局面。