很难估计出不同选择的成本和收益。
It's hard to estimate the costs and benefits of making different choices.
每个公司都必须在成本和收益之间找到一个平衡点。
Each company has to find a balance between the cost and benefits.
虽然其总体效果可能是积极的,成本和收益却分配不均。
Though its overall effect may be positive, its costs and benefits are distributed unevenly.
And what it involves is placing a value, usually a dollar value, to stand for utility on the costs and the benefits of various proposals.
其做法包括,作出估价,通常是估计出金额,来代表功利,即分别列出成本,和各项收益的金额。
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