| 例句 |
backupsnounpl. of backup a crowded mass (as of cars) that impedes or blocks movementthere was the inevitable backup of travelers trying to pass through airport security bottlenecks, jams, jam-ups, logjams, snarls, tailbacks(British), tie-ups tanglesgridlocks, lockscongestions, trafficcrawls, delays, slowdowns, stoppages a person or thing that takes the place of anotheryou didn't get the lead position, but you can be the backup to the chosen singer covers, designated hitters, fill-ins, locum tenentes, pinch hitters, reliefs, replacements, reserves, stand-ins, subs, substitutes alternates, understudiesapologies, makeshifts, stopgapsagents, assignees, attorneys, commissaries, delegates, deputies, envoys, factors, procurators, proxies, representatives, reps, surrogatesassistants, relievers, secondssuccessors, superseders |