They would be costly and the net benefits might well be negative.

他们会耗费成本，带来的净收益也可能是负面的。

youdao

Even a delay of a single year would reduce net benefits by 22.5 percent.

即使只延期一年，纯收益也将减少22.5%。

youdao

ROI is calculated by dividing net benefits (benefits minus costs) by costs.

ROI的计算方法是净收益(收益减去成本)除以成本。

youdao

Germany -- like most of Europe -- has a broad safety net: benefits for the poor and unemployed, universal health care and good pensions.

VOA: standard.2010.06.16

But we also recognize that there are limits beyond which the net benefits are negative.

FORBES: Is There Such A Thing As Tax-Free?

The premise that national top-down regulation of the economy brings substantial net benefits dominates public policy.

FORBES: Federal Regulation: The Costs of Benefits

The same concept, magnified, applies to attempts to compute social and net benefits.

FORBES: Federal Regulation: The Costs of Benefits