standby
/ˈstændbaɪ/noun
(pl. standbys)［mass noun］
1
- readiness for duty or immediate deployment随时待命：
buses were placed on standby for the journey to London.
大客车待命随时出发去伦敦。
1.1
- count noun a person or thing ready to be deployed immediately, especially if needed as back-up in an emergency应急人员（或物资）：
a generator was kept as a standby in case of power failure
为防供电中断把一台发电机用作应急设备
as modifier a standby rescue vessel.一艘应急救生船。
1.2
- an operational mode of an electrical appliance in which the power is switched on but the appliance is not actually functioning（电子产品的）待机模式。
1.3
- as modifier denoting or relating to an economic or financial measure prepared for implementation in specified circumstances（经济、金融为应付特定情况的）应急措施：
a standby credit facility.
一项应急信贷措施。
2
- the state of waiting to secure an unreserved place for a journey or performance, allocated on the basis of earliest availability（旅行或看演出时的）等退票状态：
passengers were obliged to go on standby.
乘客不得不随时等待出发。
2.1
- count noun a person waiting to secure such a place等退票者。