无论你想进研究所、非盈利性机构工作还是当个自由作家，导师都可以帮助你理解你取得的学位能让你未来怎样表现。
Whether it's grad school, a non-profit job, or even freelancing, a professor can help you understand the potential of your degree.
不少人持有的看法，与美国企业研究所或其他自由市场智库，并非格格不入。
Quite a few hold views that would not be out of place at the American Enterprise Institute or other free-market think-tanks.
Mark Mattson国立老龄研究所的科学家说当我们在消化食物时候，把食物转化为能量的时候，无能无力的是我们的肌体同时也制造了大量的副产品包括自由基。
Mark Mattson, a scientist with the National Institute on Aging, says that when we convert food into energy, our bodies create a lot of byproducts we could do without, including free radicals.
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