备份 bèifèn backup
怎么记住“备份”: 备 prepare + 份 measure word for portions and documents = backup.
汉字
用法
- A backup / to back up (data) - 数据备份 (shùjù bèifèn) data backup; 备份文件 (bèifèn wénjiàn) back up files.
- A computing term for a saved copy; distinct from 后备 (hòubèi, reserve resources). Neutral/technical.