英语词汇backup是什么意思，backup的用法、释义、翻译、读音、例句、短语词组-英汉汉英翻译词典-电脑手机教程网

单词	backup
释义	backup　 ['bækʌp]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
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