Access to selective colleges increasingly determines lifetime earnings, and has become an arbiter of access to the key positions of power and influence in American society.

在美国社会，只有名牌大学的毕业生才能获得拥有权力与影响力的关键职位。

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And yet this bottomless narcissism, together with the uncompromising intensity of his vision, holds the key to Naipaul's literary power.

这种无底线的自恋，和他不肯妥协的深刻远见，是奈保尔文学魅力的关键。

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Memory constraint is one of the key reasons for under-utilized processing power.

内存约束是处理能力利用率低下的主要原因之一。

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She has pledged U.S.support in a number of areas, including helping Pakistan repair and upgrade key electricity generating stations as the country faces severe power shortages.

VOA: standard.2009.10.28

U.S.officials hope it can be convened before key big-power discussions of the Iranian nuclear issue begin in New York during the third week of this month, on the sidelines of the U.N.General Assembly session.

VOA: standard.2009.09.11

It has reminded me of my ever desired vision of fully enjoying the Power Of Choice and a Life of Abundance while always having the key best resources and contacts in all aspects of my life.

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Indeed, E Ink has identified 700 types of products that could use its technology, including power tools (which could show the amount of power remaining) and car key readers (which could report such details as the amount of gas left in a car and the vehicle's location in a parking lot).

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Nuclear power was one of the key sources of energy in Japan before last year's twin disasters.

BBC: Japanese firms in $2bn Liquefied Natural Gas deal