只用一次打击：对有核装备的敌方第一次使用核武器，理论上认为，只有当进攻一方能摧毁敌方的反击能力时，这种方法才可行。

The initial use of strategic nuclear weapons against a nuclear-armed adversary, theorized as feasible only if the attacker can destroy the adversary's retaliatory capacity.

youdao

只用一次打击：对有核装备的敌方第一次使用核武器，理论上认为，只有当进攻一方能摧毁敌方的反击能力时，这种方法才可行。

The initial use of strategic nuclear weapons against a nuclear-armed adversary, theorized as feasible only if the attacker can destroy the adversary's retaliatory capacity.

youdao