不首先使用 bùshǒuxiānshǐyòng no first use Definitions Defs Origin Strokes Stroke Words Sentences Sents 不首先使用 bùshǒuxiānshǐyòng no first use the policy of not being the first to use nuclear weapons in a conflict; often abbreviated as NFU
不首先使用 bùshǒuxiānshǐyòng no first use the policy of not being the first to use nuclear weapons in a conflict; often abbreviated as NFU