英语词汇“back-up copy”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	back-up copy
释义	back-up copy From Longman Business DictionaryRelated topics: Computersback-up copyˈback-up ˌcopy [countable]COMPUTING a computer file, DIRECTORY etc in which you have put all the same information as is in another one so that you can use it if something should happen to the originalBack-up copies of working disks should be made frequently so that if a disk is accidentally damaged, not too much work is lost. → copy
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