an action or event that makes something fail or end 导致失败的事;致命一击 → death knell
His decision to leave the show has delivered a death blow to the series.
他的弃演决定给这部连续剧以致命一击。
Examples from the Corpus
death blow• Neither, however, will be a death blow.• Was it however so paradoxical as to have dealt a death blow to the theory?• The fact that they have seen nothing is by no means an immediatedeath blow for all grandunified theories.• The death blow to drugchic actually may have been struck by a fast-food chain.• The death blow to the Aksumite kingdom came in the tenthcentury from unassimilated Agaw in the south.