成本效益的英文：
cost effectiveness ;costbenefit

參考例句：
  • and the relative cost-effectiveness of alternative approaches to limiting risks
    以及采用替代方法控制風險的相對成本效益。
  • Poverty and Hunger discusses a variety of cost-effective ways to increase food security in the short term
    《貧窮與饑餓》討論了在短期中提高糧食保障水平的各種各樣注意成本效益的方法。
cost是什么意思：
v. 花費；使付出；估價
n. 費用；代價；成本；損失
  • Cost was no consideration.
    費用無關緊要。
  • The cost will be astronomical.
    費用將是一筆天文數(shù)字。
  • These costs are charged to an asset account entitled organization costs.
    這些成本被計入一個名為開辦費的資產(chǎn)賬戶。
effectiveness是什么意思：
n. 有效，效力

  • This parameter has no effect.
    此參數(shù)不起作用。
  • The drug was of no effect.
    這藥無效。
  • The helpful effect on propellant slosh effects was a secondary consideration
    推進劑晃動的有利性影響是一個次要的考慮因素。

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