[mass noun]a supply or quantity of bullets and shells 弹药 ■(figurative)considerations that can be used to support one's case in debate (喻)用于争论中的事实和论据 these figures provide ammunition to the argument for more resources. 这些数据为需要更多资源的论点提供了论据。
语源
late 16th cent.: from obsolete French amunition, alteration (by wrong division) of la munition 'the munition' (see munition)