Usage patterns
〈事〉に打撃を与えるto deal a blow to (something, e.g. the economy)
The typhoon dealt a heavy blow to agriculture.
打撃を受けるto suffer/receive a blow (damage)
The company suffered a serious blow from the recession.
打撃から回復するto recover from a blow (damage)
The local economy is gradually recovering from the disaster's blow.
〈相手〉に打撃を加えるto strike a blow against an opponent
That single win struck a blow against the opposing team.