SAT scores began dropping in 1963; today, on average, 30% of students do not complete high school in four years, a figure that rises to 50% in poor urban neighborhoods.

SAT 分数从1963年开始下降；今天，平均有30%的学生没有在四年内完成高中学业，这一数字在贫穷的城市社区达到了50%。

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Elapsed time: The average clock time to complete an execution.

运行时间：完成一个执行的平均时钟时间。

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Average end-to-end response time - Measures the average time transactions take to complete for the displayed time interval.

平均端到端响应时间：测量所显示时间间隔内完成事务所用的平均时间。

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Yet if you look at the ten years where Republicans had complete control, the average real equity return is still negative.

ECONOMIST: Buttonwood: Voting with the wallet | The

The cycle for the vanilloid receptor-1 compounds, for example, took three years to complete, while the average cycle for the industry, according to the Centre for Medicine Research, is five years.

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After five to seven years of education, aspiring architects must complete an internship and a costly, multipart licensing exam, which takes an average of 8.5 years to complete.

CNN: We need women designing buildings