backup 详细解释

backup

['bæk.ʌp]

n.后备

词形变化

动词过去式: backtracked | 动词过去分词: backtracked | 动词现在分词: backtracking | 动词第三人称单数: backtracks |

词义辨析

同义参见:

resort  accompaniment  utility  

英英释义

名词 backup:

an accumulation caused by clogging or a stoppage

someone who takes the place of another (as when things get dangerous or difficult)

同义词：stand-in, substitute, relief, reliever, backup man, fill-in

a subordinate musical part; provides background for more important parts

同义词：accompaniment, musical accompaniment, support

(computer science) a copy of a file or directory on a separate storage device

同义词：computer backup

the act of providing approval and support

同义词：backing, championship, patronage

补充

backupbackup英:[ˈbækʌp] 美:[ˈbækˌʌp]n.1.替代物; 备用品; 支援人员, 后备, 后补, 助手The hospital has a backup generator in case there is a power failure.医院有备用发电机以防停电。

例句

1. Police grew frustrated because they were not getting much backup from the courts.警方变得灰心起来, 因为他们没有得到法庭多少支持。 2. I've had no backup from my family, none of them even seemed concerned.我没有得到家人的帮助, 没有人表现出些许关心。 3. He described the technological backup required for the mission.他说明了这项任务所需的技术支持。 4. Midwives must have the backup of specialist obstetrician services.助产士必须有专业产科医生的支持。 5. More officers arrived on the scene to provide backup.更多警官到达现场提供增援。 6. Airports are required to have backup from local fire brigades in case of a serious incident.机场需要有当地消防队作为后援, 以防重大事件发生。 7. Other detectives told him he might not receive police backup on the street.其他侦探告诉他, 他在街上可能不会得到警力增援。 8. The two bodyguards were frantically calling for backup.两名保镖正在紧张忙乱地要求增援。 9. Every part of the system has a backup.系统的每个部分都有备用件。 10. There is no emergency backup immediately available.没有立即可用的应急备用件。 11. It didn't matter that I had accidentally wiped the disk because there was a backup.我不小心把磁盘上的东西给删了, 这不要紧, 因为有备份。 12. The accident caused a backup on the freeway.事故造成了高速公路的拥堵。 13. a traffic backup on the Bay Bridge海湾大桥上的交通堵塞 14. We need a backup team in case of emergencies.我们需要一支后援团队以防发生紧急情况。 15. Does the company have a 24-hour backup service?这家公司有24小时支持服务吗？ 16. What if you can't borrow your mum's car? Do you have a backup plan?要是你借不来你妈妈的车呢？你有没有备用计划？ 17. Computer users should make regular backup copies of their work.计算机用户应定期把所做的工作备份。 18. I was able to reload the files from a backup disk.我能够从一个备份盘上重新载入那些文件。 19. a backup storage device备份存储器 20. His role on the team is to be a backup to the regular quarterback.他是球队主力四分卫的替补。 21. We have an extra radio as a backup in case this one doesn't work.我们有一台备用收音机，以防这台出问题。 22. a backup quarterback替补四分卫 23. We need a backup plan in case of emergency.我们要有一个应急预案。 24. The policeman called for backup [=called for other police to come and help him] because the suspect was carrying a gun.由于嫌犯手里有枪，警察请求增援。 25. We have an extra radio for backup.我们还有一台备用收音机。 26. He provides backup for the regular quarterback.他担任主力四分卫的替补。 27. There was a traffic backup [=(Brit) tailback] for miles on the road because of the accident.受事故影响，拥堵在路上的车辆长达数英里。 28. There was a backup [=blockage] in the drain.下水道堵了。 29. She sang backup on his CD.她在他的唱片里伴唱。 30. a backup singer 伴唱歌手 31. Be sure to make a backup of your work.一定要把你的文件做个备份。 32. a backup file/copy 备份文件； 33. It may take some time for the backup to be complete.完成备份可能需要点时间。

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