backup

C1 CET-4 Oxf 5000 大学 FREQ #3326 ★☆☆☆☆

n. 倒车, 后退, 后援, 支持, 阻塞 vt. 做备份 a. 候补的, 支持的 [计] 备份; DOS外部命令:通常使用于将硬磁盘上指定的文件复制到软盘上

发音

其它 /ˈbækˌʌp/

词形变化

backups 复数 backups backupped backupping backups 三单 backupping 现在分词 backupped 过去式 backupped 过去分词

别名

B/U back-up

教材释义与例句

名词

支持；后援；阻塞

动词

做备份

形容词

支持的；候补的

释义与例句

n. C1 Oxf 5000
  1. 1.

    A reserve or substitute.

    If the goalkeeper is injured, we have a backup.

  2. 2.

    A copy of a file or record, stored separately from the original, that can be used to recover the original if it is damaged or destroyed.

    备份

    计算机 工程 数学

    After the power failure, we had to restore the database from backup.

  3. 3.

    An accumulation of material caused by a (partial) obstruction or (complete) blockage of the flow or movement of the material, or an accumulation of material that causes an overflow due to the flow being greater than the maximum possible flow.

    The accident caused a mile-long backup on the highway.

    The blockage caused a backup in the plumbing.

  4. 4.

    Reinforcements.

    政治 法律

    He's got a gun! You'd better send for backup.

  5. 5.

    Any support or extra help.

  6. 6.

    Accompaniment.

    音乐
  7. 7.

    Corroboration.

v.
  1. 1.

    Alternative form of back up.

    计算机 工程 数学
adj.
  1. 1.

    Standby, reserve or extra.

    I am only a backup player.

  2. 2.

    That is intended as a backup.

    计算机 工程 数学

    Make a backup copy of that file.

  3. 3.

    Supporting, reinforcing; (music) of or related to accompaniment

词汇关系

名词

同义词 10

support relief championship backing substitute patronage stand-in accompaniment reliever fill-in

上位词 10

part voice match equal blessing approval duplicate peer accumulation duplication

下位词 9

double replacement alternate surrogate vamp descant discant locum locum tenens
动词

同义词 10

back support foul choke clog back down back off choke off clog up congest

上位词 10

move act support copy block confirm jam retreat retire withdraw

下位词 10

back help second stuff shop further block advance aid root

参见 1

back

相关短语

backup vocals backup vocalist backup vocalists backup beeper backup beepers backup copy [计] 备份件 backup copies backup camera incremental backup 增量备份 [计] 增量备份 rolling backup battery backup

词源

Deverbal from back up.

来源：wiktionary