Modern vehicles have extended the range of people's activity, and thus made much more goods available to local markets.
现代交通工具延伸了人们活动的范围，也因此使市场上的商品数量增加了。
In urban cities, sedentary lifestyle and increased use of vehicles or railways for transportation are associated with diminution of physical activity among citizens.
在都市化的城市里，市民长期伏案工作及过分依赖汽车及铁路代步，以致运动量不断下降。
Pedestrian activity is one important part of urban traffic. The conflict between pedestrian and vehicles is vital factor to influence the efficiency of intersections.
行人与机动车的冲突是影响交叉口运行效率的重要因素。
Pedestrian activity is one important part of urban traffic. The conflict between pedestrian and vehicles is vital factor to influence the efficiency of intersections.
行人与机动车的冲突是影响交叉口运行效率的重要因素。
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