Definition
Describing a situation where vehicles are so close together in a line that they are almost touching.
车堵车，车尾贴车头
Commute time traffic is always gridlocked, with cars bumper to bumper and barely moving.
通勤时间的交通总是堵塞，汽车首尾相接，几乎无法移动。
Outside the music festival venue, the traffic was bumper to bumper, causing severe congestion.
在音乐节场地外，交通首尾相接，造成了严重的拥堵。
An accident on the highway resulted in bumper to bumper traffic, causing vehicles to move intermittently.
高速公路上的一起事故导致交通首尾相接，车辆只能间歇性移动。