hope against hope
毫无希望的时候，依然放弃希望的人, 或者是抱着虚张声势的希望
书面/口语·表达绝望中的坚持
英文释义
to continue to hope for something despite knowing it is unlikely to happen
例句
She hoped against hope that her lost cat would come back.
典故来源
源自圣经或文学，指在绝望中仍坚持希望，强调明知不可能却继续期待。