他发现，在跑步机上锻炼的老鼠，其大脑中流过的脑源性神经营养因子水平有所提高。
He found that rats that exercise on a treadmill have raised levels of brain-derived neurotrophic factor coursing through their brains.
我，坐在美国舒适的办公室，就如何最有效地经营虚拟的第三世界农场，提高了专业知识水平，有什么用呢？
What good does it do that I, sitting comfortably in my office in the United States, have developed a level of expertise regarding how best to manage a fictional 3rd world farm?
思科公司CEO约翰·钱伯斯曾发誓要遏制这一下滑趋势，并将公司的经营重点从增加收入转为提高毛利率水平。
CEO John Chambers had vowed to stem the decline and shift the company's focus from revenue growth to higher gross margins.
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