payback

【经】 报酬率

pay.back

n.（名词）


The return gained from or paid on an investment:
报答：对投入而获得的或应付给的回报：
例句：
.One problem with space ventures is that the up-front costs are enormous and the paybacks uncertain and far off at best.(Eric Gelman)
.太空事业的一大问题是，付出巨大的代价，但是回报却是未卜的或远不尽人意.(埃里克·盖尔曼)

The return on an investment equal to the amount invested:
回报：获得与投入相等的回报：
例句：
expect a payback within six years.
期望在六年内收回一切投入

A benefit gained as the result of a previous action.
获到：因以前活动所获得的利益
The act or process of paying back.
偿还：回报的行为或过程