snarled up
adjective UK uk/ˌsnɑːld ˈʌp/ us/ˌsnɑːrld ˈʌp/ (US snarled)
交通堵塞的
Snarled-up traffic is a long line of traffic that is unable to travel forward because something is blocking the road.
The traffic was snarled up in both directions for two miles because of the accident. 由于出了事故，两个方向的车都堵了有两英里。