system roll-back

例句：

1. 1. The systemroll-back was necessary to prevent the data from being lost.
   系统回滚是必要的，以防止数据丢失。
2. 2. The company decided to roll back to a previous version of its software before releasing it to the public.
   公司在发布软件之前决定将其回滚到之前的某个版本。
3. 3. In order to ensure data integrity, the system roll-back function is enabled in this database management system.
   为了确保数据完整性，这个数据库管理系统启用了系统回滚功能。