backup

US /ˈbæk.ʌp/
UK /ˈbæk.ʌp/
"backup" picture
1.

备份, 备用

a copy of a file or data that can be used if the original is lost or damaged

:
•
Always make a backup of your important documents.
务必备份您的重要文件。
•
I lost all my photos because I didn't have a recent backup.
我没有最近的备份，所以丢失了所有照片。
:
reserveduplicatecopyextra
2.

支援, 帮助

support or help

:
•
The police called for backup to handle the situation.
警方请求支援以处理局势。
•
She provides excellent backup for the sales team.
她为销售团队提供了出色的支持。
:
supportassistancereinforcementaid
1.

备份, 做备份

to make a copy of a file or data

:
•
You should regularly backup your computer files.
您应该定期备份您的电脑文件。
•
Don't forget to backup your phone before updating the software.
更新软件前别忘了备份你的手机。
:
copyduplicatearchive
1.

备用, 替补

serving as a reserve or substitute

:
•
He is the backup quarterback for the team.
他是球队的替补四分卫。
•
We have a backup plan in case something goes wrong.
我们有一个备用计划，以防万一。
:
reservestandbysubstituteauxiliary
:
backup dancer