backup - Definition & Meaning

ckup

复数形式

backups

增援, 支持

the act of providing assistance or support to someone or something

The soldier was relieved to see backup arrive just in time.
士兵看到援军及时赶到，松了一口气。
We had to call for backup when the situation became too dangerous.
当情况变得太危险时，我们不得不呼叫支援。
His decision to rely on backup from colleagues helped solve the issue quickly.
他决定依靠同事的支持，这有助于快速解决问题。
The police are waiting for backup before approaching the suspect's location.
警察在接近嫌疑人的位置之前正在等待支援。
The team requested backup from another department to complete the project on time.
团队向另一个部门请求支援以按时完成项目。

同义词：

备份, 后备副本

(computing) a copy of computer data that can be used to restore lost or damaged data

It's important to create regular backups of your files to prevent data loss in case of a computer crash.
为了防止电脑崩溃时数据丢失，定期创建文件的备份很重要。
The system automatically creates daily backups of the database to ensure that no data is lost in the event of a failure.
系统自动创建数据库的每日备份，以确保在发生故障时不会丢失任何数据。
The IT department conducts regular tests to ensure the integrity of the backup system and its ability to restore data.
IT部门定期进行测试，以确保备份系统的完整性及其恢复数据的能力。
Make sure to store your backup files in a secure location to protect them from accidental deletion or corruption.
确保将您的备份文件存储在安全的位置，以防止意外删除或损坏。
The external hard drive serves as a backup for important documents and photos, providing peace of mind in case of emergencies.
外置硬盘作为重要文件和照片的备份，在紧急情况下提供安心。

同义词：

a secondary musical part, vocal or instrumental, that supports or complements the main melody

同义词：

替补, 后备

a person who is available to take over or assist if the original person is unable to perform their duties

The actor couldn’t perform, so the backup stepped in for the evening show.
演员无法表演，因此替补在晚场演出中上场。
She served as a backup in case the main speaker couldn’t make it to the event.
她作为后备，以防主要演讲者无法参加活动。
The assistant coach served as backup when the head coach was out sick.
当主教练因病缺席时，助理教练充当了替补。
She trained her colleague as a backup to handle her duties during her leave.
她训练她的同事作为后备，以便在她休假期间处理她的职责。
The understudy was the backup for the lead actress in the play.
替补演员是剧中女主角的后备。

同义词：

a buildup or accumulation resulting from an obstruction or blockage