congestion
n. （交通）拥塞，塞车；充血，淤血
例句
The plan should ease traffic congestion in the town.
这项计划对城里的交通拥挤状况应该有所缓解。
《牛津词典》
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。
《柯林斯英汉双解大词典》
