交通非常拥挤英语

What a traffic jam！（口语化用法，traffic jam形象地指交通拥堵）or：What a traffic block！There is a traffic block/jam/congestion.How crowded the road is!

traffic jams（一般说法）下面的也行heavy traffic busy traffic

The streets are very compacted,and the traffic is very jammed.compacted是形容道路很有压缩感,就是觉得狭窄咯.jammed是美语里常常用到的口语,表示拥挤.

名词，traffic jams 或 traffic tie-up动词 the traffic is tied up