证券；投资的搭配组合；文件夹；责任范围的英文

• portfolio

• 证券:    bond; security; negotiable s ...
• 投资:    put money in; invest
• 的:    4次方是 The fourth power of 2 i ...
• 搭配:    assort or arrange in pairs o ...
• 组合:    make up; compose; constitute