On a typical weekday evening in downtown Washington recently, motorists inched along in stop-and-go traffic, pedestrians braced themselves against a blustery wind, trying to make their way home.
最近某个平常的工作日夜晚，华盛顿市中心的车辆艰难地往前挪动，行人们努力在大风中站稳，费劲地往家中走去。
The National Research Council, part of the National Academies in Washington, recently published a study.
国家研究委员会是华盛顿美国国家科学院的一个分支。它最近发表了一项研究。
The National Research Council, part of the National Academies in Washington, recently published a study.
国家研究委员会是华盛顿美国国家科学院的一个分支。它最近发表了一项研究。
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