portfolion.文件夹；公事包；作品集；投资组合；（大臣或）部长职务portfolio reinsurance未满期责任再保险portfolios parameters资产组成参数portfolio composition证券投资构成portfolio of policies保单组portfolio of products产品portfolioportfolio acquisition全部购买portfolio optimization组合优化Portfolio choice model投资决策模型portfolio-consumption投资消费portfolio frontier belt投资组合前沿带