standby

n.

备用品；可信赖的人；

adj.

备用的；

adv.

备用地；待命地；

复数：standbys

on standby待命；待命状态；严阵以待

standby power备用电源；储用功率

standby letter of credit备用信用证

standby mode待机模式；备用方式

hot standby热备份

standby time[计]备用时间；闲置时间

standby equipment备用设备

standby system备用系统

1. Powdered milk is a good standby in an emergency.
   奶粉是应急时很好的备用品。
2. The emergency services were put on standby after a bomb warning.
   接到炸弹警报后，各紧急救助部门进入待命状态。
3. A special team of police were kept on standby during the time of violence.
   在发生暴乱期间，经常有一支警察特别小分队处于整装待命状态。

1. They bought two cheap standby tickets for Rome.
   他们买了两张便宜的去罗马的备用机票。
2. Your reservation is already in the standby list.
   您的订位已经在候补名单了里。

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