管理员摘要：
例句： Congestion frequently reduces traffic to walking pace. 交通阻塞经常把车流的速度降低得如步行一般缓慢。 The problems of traffic congestion will not disappear in a hurry. 交通堵塞问题不会很快消失。 Traffic congestion is really bad a……
例句：
Congestion frequently reduces traffic to walking pace.
交通阻塞经常把车流的速度降低得如步行一般缓慢。
The problems of traffic congestion will not disappear in a hurry.
交通堵塞问题不会很快消失。
Traffic congestion is really bad at peak periods.
交通拥挤状况在高峰时段真是糟糕透了。