backup

支持；后援；阻塞英释中释nBackup consists of extra equipment, resources, or people that you can get help or support from if necessary

支持的；候补的中释adj

做备份中释vt

1 backup and recovery,备份与恢复

2 backup and restore,备份与还原

3 backup system,备用系统；后备系统

4 backup roll,支承辊；背辊；压辊

5 backup copy,副本；备份件

6 backup file,备份文件

7 backup software,文件备份

8 backup device,备份设备；备用设备

9 full backup,全部备份

10 system backup,系统备份；系统后备

11 backup storage,n. 后备存储器

12 file backup,文件备份；档案备份

1 There is no emergency back-up immediately available..没有立即就能获得的后备。