Critics argue that although casinos elsewhere provide employment and a net economic benefit, they can also increase the incidence of compulsive gambling and local deprivation.
批评者认为，尽管他国赌场提供了就业机会和经济净效益，赌博成瘾和地区贫困化的概率也增加了。
2
The introduction of deep tube Wells to reduce arsenic in drinking water in rural Bangladesh had the additional benefit of lowering the incidence of diarrhoea among young children.
Conclusion: Active rehabilitation prevention was benefit to reducing the incidence of the CVD, improving the function of the CVD patients and increasing the quality of life of them.