backup是什么意思？

backup

英[ˈbækʌp] 美[ˈbækˌʌp]

• n. 支持，后援，阻塞，<计>备份文件，[乐]伴奏；
• adj. 备用的，后补的，支持性的，伴奏的；

复数：backups;

例句

• We had no computer backup and had to rely on old paper files to reconstruct the records. 我们没有计算机备份,只得靠落后的纸档案重做记录。
• a backup disk 备份磁盘
• a backup singer for Stevie Wonder 史蒂维·旺德的伴唱歌手
• military backup 军事援助
• Two backup singers that want to be lead vocalists, solo stars? 两位和声歌手渴望成为主唱成为独唱明星?
• Stop lights, backup lights , and four - way emergency flashers also aid in vehicle safety. 停车灯 、 倒车灯和紧急闪烁灯也是有助于车辆安全的.
• Do you have a backup system for emergency closings? 如果有什么紧急情况需要暂时关闭幼儿园时有什么后备措施 吗 ?
• The former backup dancer and aspiring rapper is also seeking spousal support. 早前当过伴舞演员也唱过说唱的凯文还要求布兰妮支付配偶赡养费.
• Dual power supply, backup generator, total power supply of 32,000 KVA. 高压双路供电, 市电总供电量为32,000kVA.后备发电机, 不间断电源系统.
• The backup Javascript configuration file was absent or had errors. 以前备份的javascript配置文件不存在或有错误.

英语四级真题

And so the old technology remains as a backup.
出自-2014年6月阅读原文

英语六级真题

Karen said she was available as a backup.
出自-2012年12月听力原文

柯林斯高阶英汉双解学习词典释义

• N-VAR
  （物资、人员等的）支持，辅助
  Backup consists of extra equipment, resources, or people that you can get help or support from if necessary.
  例句
  There is no emergency back-up immediately available... 手头无法获得应急支持。 Alternative treatments can provide a useful back-up to conventional treatment. 替代疗法能为传统的治疗提供有效的辅助。
• N-VAR
  备用品；后备计划
  If you have something such as a second piece of equipment or set of plans as backup, you have arranged for them to be available for use in case the first one does not work.
  例句
  Every part of the system has a backup... 系统的每个部分都有备用元件。 Computer users should make regular back-up copies of their work. 计算机使用者应该定期对自己的工作进行备份。

英汉词典释义

• n.
  帮助；援助；支持
  military backup 军事援助
  替代物;备用品;支援人员, 后备, 后补, 助手
  a backup singer for Stevie Wonder 史蒂维·旺德的伴唱歌手 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。 She once sang backup for Madonna. 她曾经为麦当娜伴唱。
  <计>备份文件
  a backup disk 备份磁盘 Have you kept a backup of this file? 你把这文件备份了吗? We had no computer backup and had to rely on old paper files to reconstruct the records. 我们没有计算机备份,只得靠落后的纸档案重做记录。

英英词典释义

• Noun
  1. an accumulation caused by clogging or a stoppage;
  "a traffic backup on the main street""he discovered a backup in the toilet"
  2. someone who takes the place of another (as when things get dangerous or difficult);
  "the star had a stand-in for dangerous scenes""we need extra employees for summer fill-ins"
  3. a subordinate musical part; provides background for more important parts
  4. (computer science) a copy of a file or directory on a separate storage device;
  "he made a backup in case the original was accidentally damaged or erased"
  5. the act of providing approval and support;
  "his vigorous backing of the conservatives got him in trouble with progressives"

行业词典

• 体育： 后备球员；