相关单词近義詞 fallback 撤退, reserve 保畱, replacement 更換, resource 資源, stand-in 替身, backup 後備, substitute 代用品, spare 備用的, emergency 突發事件, unreserved 坦率的, last-minute 最後一刻的, late 遲的, understudy 充儅（某角色的）候補縯員...臨近詞standing, standards, standby UPS, standby mode, standby file, standby load, standby time, standby crew, standby code, standby unit, standby face, standby line相似詞standard operating procedure, standard time, standard-bearer, standardize, standing, standing desk, standing joke, standing on your head idiom, 返回 standby