In these days the pre-industrial city in America functioned as a complex and varied organizing element in American life, not as a simple, homogeneous, and static unit.

在这些日子里，美国未工业化的城市在美国人的生活中是一个复杂而多样的组织元素，而不是一个简单的、同质的、静态的单位。

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Time is the most valuable commodity there is. Its value cannot be measured in dollars and cents because time is the fundamental unit of life.

时间是最重要的东西，他的价值不能用金钱来衡量，因为它是生活中的最基础的元素。

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This reliability and easy maintainability makes AESA radars more affordable over the service life of the unit.

这种可靠性及易维护性使AESA雷达在战斗机寿命周期中更加实用。

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Secondly, Halifax has extended its reach in the long-term savings market by acquiring the sales force and unit-linked business of Equitable Life, the troubled mutual life insurer.

ECONOMIST: Bank mergers

It also acquired Insight Direct USA's PC Wholesale unit, which distributes end-of-life and refurbished IT products.

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During my two tours flying helicopters in Iraq, my unit experienced many dangerous and potentially life-threatening scenarios.

CNN: Women on front lines? Of course