社会效益的英文：
social benefits
social effectiveness

参考例句：

604.8 thousand tons water is saved every year. The economic,social and environmental benefit are all remarkable.
每年节水达60.48万t,取得显著的经济效益、社会效益和环境效益。

social是什么意思：
adj. 社会的；群居的；合群的；社交的
n. 联谊会；社会聚会

A social debut.
首次进入社交界，首次演出

Slavery was once socially sanctioned.
奴隶制曾经为社会所认可。

social service facility
社会服务场所

benefits是什么意思：
n. 利益，好处；救济金，津贴；利润
v. 有益于，受益

benefit of the doubt
裁判员对可疑情况无把握时不对有关运动员作不利判定

It is possible to overstate the benefits of stabilization.
稳定性带来的好处有可能被夸大。

The flowers were a fringe benefit.
这些鲜花可算是额外的报酬。

effectiveness是什么意思：
n. 有效，效力

This parameter has no effect.
此参数不起作用。

The drug was of no effect.
这药无效。

The helpful effect on propellant slosh effects was a secondary consideration
推进剂晃动的有利性影响是一个次要的考虑因素。