【拳】〈美〉猛击;(对付敌手的)强有力手段
Some senators feel that if air power is to be the main threat, we are not spending enough on aircraft to give us the "Sunday punch" needed.
有些参议员认为,尽管我们的空军力量可对敌人造成主要威胁,但我们却没有在飞机方面投入足够的财力来获取这一所需的“杀手锏”.