to deal a death blow to sth or to deliver a death blow to sth给…致命一击
The people of Hatfield went into shock as they learned their town had been dealt a death blow.当听说他们的小镇遭受了致命打击后, 哈特菲尔德的居民震惊了。
The party promised to deliver a death blow to feudalism.该政党许诺将会给封建主义一次致命的打击。