名词
中文翻译：交通环
同义词：
['traffic circle', 'transitloop']
例句：
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1. The newsubway station is designed to improve thetransit circle around the city center.
新的地铁站设计旨在改善城市中心的交通环。
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2. Thetransit circle has been expanded to accommodate morepeople.
交通环已经扩大以容纳更多人。
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3.The transit circle is a crucial part ofthe city's transportation system.
交通环是城市交通系统的关键部分。