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n. 可依靠的人, 被喜爱的食品, 备用品, 准备发报, 准备收报
【电】 备用的

standby facility standby condition standby processor standby channel standby valve standby cost standby machinery standby power source maintenance standby standby offering standby register standby machine standby arrangement standby mode hot standby standby computer standby agreement standby credit