英语词汇back-up electricity怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	back-up electricity
释义	back up (sb.) — 作主 • 做主 back sb up— 敲边鼓 backing up v — 备份 v electricity n — 电 n • 电费 n • 电能 n • 供电 n • 用电 n • 电气 n • 电力 n back adj — 后 adj • 回来 adj back adv — 支持 adv • 支援 adv • 力挺 adv • 脊背 adv • 后边 adv back n — 背 n • 背面 n • 背部 n • 后面 n • 背影 n • 脊 n • 背侧 n back-up — 后援 up — 向上 • 攲 up n — 起伏 n back sb. up— 仗腰
随便看	this alone this alone does not this alone gives this alone is not enough this alone makes this along with this already shows this also affects this also allows this also applies this also applies for this also applies when this also apply this also becomes this also concerns this also contributes this also corresponds this also ensures this also entails this also explains this also explains why this also goes this also help this also highlights this also holds

英汉双解词典包含2273206条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。

back up (sb.) —