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。
There's just a kind of a stand and you put the ball on the stand and then you just hit it.
只有一个台子,你只需把球放在台上,然后击打它。
and to whoever wants to come by and see the farm stand we have set up on the first Friday of every month.
以及那些过来参观我们农场的人,在每个月的第一个周五。
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