up against it
遇到困难或紧迫局面；面临艰难或危险的情况
口语·形容面临挑战
英文释义
to be in a difficult or challenging situation
例句
With the deadline approaching and no help, we're really up against it.
典故来源
源自军事或体育对抗：面对强大对手或紧迫压力，强调处境艰难。