首页 > 英语词典 > back up


back up

听听怎么读
英 [bæk ʌp]
美 [bæk ʌp]
是什么意思
  • vi.

    协防,补防;支持;堵塞;复制往后退;

  • 英英释义

    back up

    • n.
      • an accumulation caused by clogging or a stoppage

        同义词:backup

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

        同义词:stand-insubstitutereliefrelieverbackupbackup manfill-in

      • a subordinate musical part; provides background for more important parts

        同义词:accompanimentmusical accompanimentbackupsupport

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

        同义词:backupcomputer backup

      • the act of providing approval and support

        同义词:backingbackupchampionshippatronage

    • v.
      • give moral or psychological support, aid, or courage to

        同义词:support

      • move backwards from a certain position

        同义词:back offback down

      • establish as valid or genuine

        同义词:back

      • make a copy of (a computer file) especially for storage in another place as a security copy
      • become or cause to become obstructed

        同义词:clogchoke offclog upcongestchokefoul

    学习怎么用

    词组短语

    backup and recovery备份与恢复

    backup and restore备份与还原

    backup system备用系统;后备系统

    backup roll支承辊;背辊;压辊

    backup copy副本;备份件

    backup file备份文件

    backup software文件备份

    backup device备份设备;备用设备

    full backup全部备份

    system backup系统备份;系统后备

    backup storage n. 后备存储器

    file backup文件备份;档案备份

    更多收起词组短语

    双语例句

    用作不及物动词(vi.)
    1. Because congestion prevents ships heading back to pick up new cargoes, it has helped to push prices up further.
      由于拥堵使船只难以返回运载新的货物,起到了进一步推高价格的作用。
    2. Some drivers will switch to the bridge to shorten theircommute, but as the traffic builds up there the motorway starts to look like abetter bet, so some switch back.
      一些司机为了缩短行程选择走桥,但当桥上变得拥堵时,高速路似乎是更好的选择,因此一些司机又折返回来走桥。
    3. The fire won't burn because the flue is blocked up.
      因烟道堵塞火烧不起来。
    4. Clogged pipes backed up drain water.
      阻塞的水管堵塞了沟水。
    用作及物动词(vt.)
    1. She has almost nobody to take up for her.
      她几乎没有人支持。
    2. The people are at the back of the government.
      人民是支持政府的。
    3. The regime had been propped up by foreign aid.
      该政权是靠外国援助维持著的。
    4. He turned his back on his own family when they did need help.
      他的家庭正需帮忙时,他不予援助。
    5. The car backed up and hit the tree.
      汽车倒退撞在树上。
    6. The steps are easy to trace back.
      易于将这些步骤倒退回去。
    7. You can back up and restore full-text catalogs.
      可以备份和还原全文目录。
    8. This option will back up files on the volume.
      该选项将备份卷中的文件。

    权威例句

    System and parallel streaming and data stripping to back-up a network
    An expert system for the back-up protection of a transmission network
    A back-up glycosylase in Nth1 knock-out mice is a functional Nei (endonuclease VIII) homologue.
    A Novel Back Up Wide Area Protection Technique for Power Transmission Grids Using Phasor Measurement Unit
    Direct methanol fuel-cell combined with a small back-up battery
    DNA polymerase lambda mediates a back-up base excision repair activity in extracts of mouse embryonic fibroblasts
    Back Up the Organization: How Employees and Information Systems Remember Organizational Practice
    Effects of exit back-up on delamination in drilling composite materials using a saw drill and a core drill
    Back up the organisation: how employees and information systems re-member organizational practice
    Back up your Stance: Recognizing Arguments in Online Discussions