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1·With the improvement of living standards, more and more people begin to buy cars to meet the needs of work and life, thereby worsening the traffic problems.

随着生活水平的提高，越来越多的人开始买车来满足工作生活的需要，因而使得交通问题更加糟糕。

2·Increasing Numbers of cars result in the worsening of air quality and frequent traffic jams in big and medium-sized cities.

汽车数量的日益增长导致大中型城市空气质量恶化，交通堵塞频频发生。

3·Population expansion in modern cities caused the problem as the house crowding, the traffic jam, and urban environment worsening and so on.

现代城市由于人口过度膨胀而导致的住房拥挤、交通堵塞、城市环境恶化等现象使城市人们向往更富自然、生态气息的绿色空间。

4·Opponents note that last year's addition of a lane to the nearby Green Highway was followed by a worsening of traffic jams on it.

但去年但临近的G高速采用了相同的方法后交通状况更加恶化。