n.備用；待命者

adj.備用的；應(yīng)急的

Powdered milk is a good standby in an emergency. 奶粉是應(yīng)急時很好的備用品。

The emergency services were put on standby after a bomb warning. 接到炸彈警報后，各緊急救助部門進入待命狀態(tài)。

A special team of police were kept on standby during the time of violence. 在發(fā)生暴亂期間，經(jīng)常有一支警察特別小分隊處于整裝待命狀態(tài)。

They bought two cheap standby tickets for Rome. 他們買了兩張便宜的去羅馬的備用機票。

Your reservation is already in the standby list. 您的訂位已經(jīng)在候補名單了里。