Level 5 · word 5,964 of 20,000
backup
/ˈbæˌkʌp/
American
- n. 后援, 备份
- v. 备份
- Definition
- n. extra help or support, or a copy kept in case something is lost
- v. to make a copy of computer data for safety
- Example
- Always keep a backup of your important files online.
- 一定要把重要文件的备份存放在网上。