| 例句 |
jam-upsnounpl. of jam-up a crowded mass (as of cars) that impedes or blocks movementknowing that there was a big traffic jam-up ahead, we took the detour that the locals always use backups, bottlenecks, jams, logjams, snarls, tailbacks(British), tie-ups tanglesgridlocks, lockscongestions, trafficcrawls, delays, slowdowns, stoppages |