backup
英 /ˈbækʌp/
中文释义
备份 / 后援
An alternative option or copy kept in case the primary one fails.
常用搭配
- a data backup数据备份
- a backup copy备份副本
- a nightly backup每晚备份
例句
- Always keep a backup of your photos.一定要给照片留个备份。
- The server crashed, but we had a backup.服务器崩了,好在我们有备份。