"He has improved information-sharing, increased intelligence support to our troops in Afghanistan and Iraq, upheld civil liberties, and he played a key role in our effort to update and reorient our intelligence community to meet the threats of our time."

VOA: standard.2010.06.05

Because if you did what I suggested with the list, the time to look up the key would be linear in the length of the list. You'd have to look at each element until you found the key.

字典是用一种很神奇的，叫做散列法的算法,来实现的，后面我们将,会学到一点关于。

麻省理工公开课 - 计算机科学及编程导论课程节选

Now last time, following Ricoeur, I mentioned Marx, Nietzsche and Freud as key figures in the sort of secondary development that somehow inaugurates theory, and then I added Darwin.

上次继里克尔之后，我提到了马克思，尼采和弗洛伊德,把他们作为推动初始理论进一步发展的关键人物，之后我加上了达尔文。

耶鲁公开课 - 文学理论导论课程节选

The number of Picassos on show, while significant in its own right, is especially so because it comes at a key time in Hong Kong's cultural development.

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Third is to create more systems and processes to allow us to go to market more quickly and in a more responsive, culturally relevant and results-oriented manner, leveraging key moments in time.

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In addition, senior economic officials will be doing regional satellite time into key targeted states in advance of the vote.

WHITEHOUSE: The White House