reserve alternate spare standby backup standby application spare wheel
The hospital has an auxiliary power system in case of blackout.
这家医院装有备用发电系统以防灯火管制。
—— 给力词典精选Take a spare tire along in case of need.
带个备用轮胎去,以备不时之需。
—— 给力词典精选The hospital has a backup generator in case there is a power failure.
医院有备用发电机以防停电。
—— 给力词典精选I might need a spare set of clothes.
我可能需要一套备用的衣服。
—— 辞典例句He misplaces his reading glasses with such regularity that aides carry extras.
他老是记不起把自己阅读时用的放大镜放在什么地方,所以助手们会随身携带备用的。
—— 柯林斯例句