a back-up copy

 
       
  • 备份文件

a back-up copy的用法和样例:

例句

  1. Many software companies make an express provision for the user to make one back up copy.
    许多软件公司明文规定要求用户进行一次副本备份。
  2. Back up a copy of the database encryption keys.
    备份数据库加密密钥的副本。
  3. Personnel were contacted on their portables and as a back up could be contacted by cell phone.
    人员均配备有携带型对讲机,并备有作为备份的手机。
  4. You can carry your wallet (or just a plastic sandwich bag) but with only one credit card (have a back up) and maybe 200 reis ($120).
    您可以携带您的钱包(或只是一个塑料夹层袋) ,但只有一个信用卡(有备份) ,也许200雷斯( 120美元) 。
  5. He drought along a file of document to back up his claim.
    他随身携带一卷宗文件以便证实索赔要求。

a back-up copy的相关资料:

临近单词

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