a situation in which a long line of traffic is unable to travel forward because something is blocking the road

Many roadworks have been suspended to avoid further snarl-ups on the motorways. 许多道路工程已经暂停，以避免在高速公路上出现进一步的拥堵。

Thousands of train drivers walked out last night causing London's worst travel snarl-up for two years.

a situation in which a system or organization does not work properly

A company facing snarl-ups can switch to another scheduling arrangement. 面临混乱，公司可以改用另一种排班安排。

Overcrowding and baggage snarl-ups at Heathrow were beginning to hit the airline's revenues. 希思罗机场的过度拥挤和行李混乱开始影响该航空公司的收入。