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English definition of “a knockout blow”

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a knockout blow

an event or action that causes someone or something to fail: Already out of training, the latest illness has dealt her hopes of a gold medal a knockout blow.
Translations of “a knockout blow”
in Chinese (Traditional) 毀滅性的打擊…
in Chinese (Simplified) 毁灭性的打击…
(Definition of a knockout blow from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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