America's education system has become less a ladder of opportunity than a structure to transmit inequality from one generation to the next.

美国的教育体制不再是通往机遇的阶梯，而是一个将不平等代代相传的体系。

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One way to deal with system complexity is to decompose both structure and behavior in a hierarchical way.

解决系统复杂性的一种方式是以分层的方式分解结构和行为。

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One of the most important tools released with AspectJ is a graphical structure browser that reveals at a glance how aspects interact with other system components.

随aspectj一起发布的一个最重要的工具是图形结构浏览器，它展示了Aspect如何与其它系统组件交互。

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It's one reason that institutions such as the economy, the political system and the social structure haven't matured as quickly as they should have, given Mexico's advantages.

CNN: In Mexico, racism hides in plain view

The successful bidder, GoalControl, believes that one of its strengths is the fact that neither the ball nor goal structure need to be changed for the system to work -- with referees receiving a vibration and optical signal in their watches to inform them of a successful score.

CNN: Latecomer wins FIFA goal-line tech deal