| 释义 |
●ˌback sth ˈup1. (computing 计算机) to make a copy of a file, a program, etc. that can be used if the original one is lost or damaged 备份（文件、程序等）◆We back up all the files every night.
我们每晚都给所有文件做备份。OBJ file, document2. to add sth extra to sth, especially as a support 补充；辅助；支持◆The lectures will be backed up by practical work.
课堂讲授将辅以实际操作。◆They backed up their demands with threats.
他们以恐吓手段要挟满足其要求。[v + n/pron + adv] [v + adv + n]▸ 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 |