backup

UK:  ['bækʌp]

US:  ['bæk.ʌp]

复数：backups  

n.

1.后备;支持

2.备用设备

3.〔电〕备用保险线路;〔气〕逆转

4.备件

5.挡块

6.堵塞

7.补充

8.支柱

9.〔计〕回溯

10.后补物,替代物,备用物;支持;阻塞;【计算机】备份

v.

1.做备份

adj.

1.后补的,副(手)的,替代的,备用的;支持性的;伴奏的

2.后备

3.预备的

4.支持的

5.辅助的;补充

1 . Specifies the time interval used to determine if a report or backup file is old enough to be deleted.
指定时间间隔，用于确定报表或备份文件是否旧到需要将其删除。

2 . To backup your OS, you can simply drag that ubuntu directory to any other disk with enough space outside of the "File System" label.
你只要把这个文件夹拖往任何一个有足够空间的外部地址就能实现系统备份。

3 . Before beginning any conversion, please backup your database. WordPress: Backing Up Your Database has easy-to-follow instructions.
在开始任何操作之前，请备份你的数据库。备份你的数据库有简单容易掌握的说明。

4 . Before mirroring can be reestablished, at least one log backup must be taken on the principal database and applied to the mirror database.
重新建立镜像之前，必须对主体数据库至少执行一个日志备份，并将此日志备份应用到镜像数据库。

5 . The cars are never unmanned, Thrun wrote. He said a backup driver is always behind the wheel to monitor the software.
Thrun写到：该车并不是永远无人驾驶，一位后备驾驶员始终在驾驶位上监视着相关软件。