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單詞乎

back-up

back-up是什么意思、back-up怎么讀

back-up漢語(yǔ)翻譯

【計(jì)】 后援; 備份
【醫(yī)】 后盾(在大氣中高壓電流所通過(guò)距離)

back-up英語(yǔ)解釋

名詞 back-up:

  1. an accumulation caused by clogging or a stoppage
    同義詞：backup
  2. someone who takes the place of another (as when things get dangerous or difficult)
    同義詞：stand-in, substitute, relief, reliever, backup, backup man, fill-in
  3. a subordinate musical part; provides background for more important parts
    同義詞：accompaniment, musical accompaniment, backup, support
  4. (computer science) a copy of a file or directory on a separate storage device
    同義詞：backup, computer backup
  5. the act of providing approval and support
    同義詞：backing, backup, championship, patronage

動(dòng)詞 back-up:

  1. give moral or psychological support, aid, or courage to
    同義詞：support, back up
  2. move backwards from a certain position
    同義詞：back up, back off, back down
  3. establish as valid or genuine
    同義詞：back, back up
  4. make a copy of (a computer file) especially for storage in another place as a security copy
    同義詞：back up
  5. become or cause to become obstructed
    同義詞：clog, choke off, clog up, back up, congest, choke, foul

back-up例句

  1. The police had military back-up.
    警方有軍隊(duì)作後盾。
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