求高手幫忙翻譯市場營銷英文論文中的段落

To summarize, marketing R.O.I. must start within an intellectual framework that defines the purpose of marketing and the value it creates. The analytical framework for marketing R.O.I. must start at the components of marketings contribution to value creation. These components are brand net sales revenue growth and brand gross margin, driven by brand equity. Brand equity can be defined and measured as the Net Present Value (NPV) of cash flows (top-line or bottom-line), which result from the cohort of consumers who purchase the brand over time. Marketing drives these consumers "up" a continuum, which is defined behaviorally (from trial to 100 percent share of requirements) and attitudinally (from acceptance of the brand to adoration of the brand) 不要Google裏面的翻譯，要讀的通的，希望高手給予幫助，100分敬上，如果可以多翻的'話，我還需要幫忙，而且也會將更多的分給予。