n.政策；策略；保险单；策略性 变形： 复数：policies 双语释义：n.(名词)[C][U]政策,方针,策略 a course of action for dealing with a particular matter or situation[C][U]精明的行为,上策 a course or principle of action that is to one's own advantage[C]保险单 a written statement of the details of an agre