Another advantage of switching to corn ethanol is that it helps the American economy become less reliant on energy sources from other countries.
改用玉米乙醇的另一个好处是,它有助于减少美国经济对其他国家能源的依赖。
If sustainable competitive advantage depends on work force skills, American firms have a problem.
如果持续竞争优势依靠劳动力的技能,那么美国的公司就有问题了。
Having a large American membership is a particular advantage.
有众多美国会员是一个特别优势。
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