backups是什么意思及反义词

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释义：备份

英语句子

Backup copy
备份拷贝

Backup (underwriting) facility fee
后备(保险)项目费用

There's a backup of traffic at the drawbridge.
吊桥上交通阻塞。

There's a backup in the sink.
下水道堵塞。

This is the backup commissarial list.
这是候补委员名单。