They were designed not to impede Iran’s nuclear program directly, but rather to increase the price that Iran’s leaders must pay for pursuing their nuclear ambitions. The thinking (or, more accurately, the hope) was that Iran’s leadership, if forced to choose between regime survival and nuclear weapons, would choose the former.
环境的最重要变化便是伊朗经济的急剧恶化。最近几个月和几年来众多金融和石油相关制裁正在显现效力。这些制裁并不是为了直接阻碍伊朗核计划，而是为了提高伊朗领导层为追求核野心所必须付出的代价。其中的算盘（更准确地说，是希望）是伊朗领导被迫在政权和核武器之间做出选择的时候，他们会选择前者。