| 释义 |
▸ ˈbackup noun 1. [countable] (computing 计算机) a copy of a file, program, etc. for use in case the original is lost or damaged （文件、程序等的）备份◆Have you kept a backup of this file?
这份文件你备份了吗？◆a backup disk
备份磁盘2. [uncountable] support or help that you can use in order to do sth 支持；帮助；援助◆military backup
军事援助◆They have a huge backup team.
他们有一支庞大的后援队。3. [countable] a second piece of equipment, person, etc. that can replace another if necessary 备用器械；替补人员；后备◆He’s our backup if another player isn’t available.
如果我们有队员无法上场，就由他替补。◆the backup plan
备用方案 |