First, the weapons should be intended for use only in retaliation after a nuclear attack. Second, the possession of the weapons must be a temporary expedient.

首先，这些武器应当只在遭受核袭击后反击时才使用。其次，这些武器的拥有必须是一种临时的应急手段。

《柯林斯英汉双解大词典》

Indeed, as the Soviet Union acquired vastly increased nuclear capabilities, the credibility and prudence of relying on massive retaliation gave way to our flexible response posture.

事实上，由于苏联已经拥有了大量增加的核能力，我们依靠大规模报复战略的可靠性和谨慎态度要让位于我们的灵活反应战略。

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Indeed, as the Soviet Union acquired vastly increased nuclear capabilities, the credibility and prudence of relying on massive retaliation gave way to our flexible response posture.

事实上，由于苏联已经拥有了大量增加的核能力，我们依靠大规模报复战略的可靠性和谨慎态度要让位于我们的灵活反应战略。

youdao