You simply can't rely on one method and one type of backup.

您只需不能依靠一种方法和一种类型的备份。

youdao

If you are using circular logging, offline backup is the only type of backup supported.

如果您正在使用循环日志记录，脱机备份是惟一受支持的备份类型。

youdao

Almost Hot backup in most cases you can perform this type of backup while your application is running.

几乎是热备在大多数情况下，可以在应用程序仍在运行的时候执行备份。

youdao

"In the near future, this type of simple laser communication might serve as a backup for the radio communication that satellites use, " Smith said in a statement.

CNN: STORY HIGHLIGHTS