这周在底特律的北美国际汽车展会上，人们和制造商们主要聚焦在揭幕未来汽车上。
They were the main focus at the North American International Auto Show in Detroit this week as the car companies unveiled future vehicles.
受经济衰退和环保问题影响，汽车行业进入了一个新格局，在美国汽车城底特律市进行的2010年北美国际汽车展也因此大大减小了规模并且更加环保。
The 2010 North America International Auto Show (NAIAS) at the U. S. auto city of Detroit is a lot smaller and greener as the industry adapts to a world reshaped by recession and environmental worries.
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