他们中有些或许有意环境效益，不过他们的主要动机还是赚钱，只会把钞票投给会产生巨大收益的创意。
Though many are interested in environmental benefits, their main motive is money. They are investing their cash in ideas that they think will make them large amounts more.
他们说，恐怖袭击更少了，但成本与效益的平衡依然很差——收益约为开支的5%-8%。
There were fewer terrorist attacks, they say, but the balance of costs and benefits is still poor—between five and eight cents of benefit for every dollar spent.
我们的报告强调，这对援助管理、援助效益和实现为阿富汗人民带来实际收益来说，是个非常严重的问题。
Our report emphasizes that this is a very serious problem for aid management, aid effectiveness and achieving results for the Afghan people.
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