普华永道汽车研究所预计，到2015年这一比例将轻微上升至4％。
PricewaterhouseCoopers' automotive institute expects to see a small rise to 4% by 2015.
德克萨斯农工大学交通研究所的研究工程师凯文·鲍克说，虽然智能交通灯对一些城市特别有帮助，但有些城市太拥挤了，只有大幅减少道路上的汽车数量才能有效改变拥堵的局面。
Kevin Balke, a research engineer at the Texas A&M University Transportation Institute, says that while smart lights can be particularly beneficial for some cities, others are so jammed that only a sharp reduction in the number of cars on the road will make a meaningful difference.
他们从研究所过马路到对面公共汽车站时，有一群工人从他们面前走过，有两个女工回头看了他们，然后小声地和其他工人说话。
A small group of workers, on their way from the institute to the bus stop across the street, passed the pair of men; two women looked back at them and then talked in whispers to the group.
应用推荐