The congested traffic has become a serious problem for many cities with their steadily increasing population, and the construction of subways is viewed as an effective solution to the problem.

随着城市人口的不断增加，许多大城市都存在交通拥挤问题，而修建地铁又是非常有效的解决方法。

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Meanwhile, the teams objected to the extension, arguing that it would jam the congested area with additional traffic on game days.

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Oklahoma Highway Patrol Trooper Betsy Randolph said roadways quickly became congested with the convergence of rush-hour traffic and fleeing residents.

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Oklahoma Highway Patrol Trooper Betsy Randolph said the roadways were quickly congested with the convergence of rush-hour traffic and fleeing residents.

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