Sharon also sang backup for Barry Manilow.(莎倫還為巴里·馬尼洛唱了伴唱。)

In areas where the wind dies down, backup electricity from a utility company or from an energy storage system becomes necessary.(在風能不穩定的一些地區，需要供電事業公司或者能量儲存系統來提供備用電能。)

If that happens, the grasshopper has a backup defense.(如果發生這種情況，蚱蜢就有了后備防御。)

The police had backup from the army.(警方得到了軍方的增援。)

The complete backup in DB2 should be an offline backup.(在DB2中，完全備份應該是一個離線備份。)

Every part of the system has a backup.(這套系統的每個部分都有備件。)

Backup the database.(備份數據庫。)

Although many of these storage media have high capacity, a backup tool with compression capabilities is a big plus, eliminating the inconvenience of multiple disks or large uploads.(盡管這些存儲介質中有許多具有高容量，但具有壓縮能力的備份工具是一大優勢，它消除了多個磁盤或大型上傳的不便。)

Test cold backup.(測試冷備份。)

You should make a copy of the disk as a backup.(你應該將磁盤復制一個備份。)