One study has calculated that the lifetime benefit to the local economy for a single additional student who completes high school is half a million dollars or more.
一项研究计算得出，每增加一名完成高中学业的学生，当地经济的终身效益将增加50万美元或更多。
Either way, one benefit of a "national" organization would be to negotiate better prices, if possible, with drug manufacturers.
无论哪种方式，“国有”组织的一个好处是，有可能通过与药品制造商谈判获得更优惠的价格。
A number of studies have tried and failed to find a benefit, like a recent one that randomly assigned 5, 442 women to take either a placebo or a B-vitamin combo.
大量的试验试图表明它的好处，但都失败了，就像最近的一次研究，5,442名妇女被随机分配服用安慰剂或是维生素b。
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