英语词汇backup performance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	backup performance
释义	backup — 奥援 performance — 性能 • 表演 • 演出 • 秀 performance n — 效能 n • 执行 n
随便看	extendable handle# extendable materials extendable pole extendable shaft extendable to months extendable volume extendable with extend about extend a building extend access extend account extend a contract extend a credit extend across extend activities extend a deadline extend a demand extend a discount extend advances extend a field extend a frequency extend after extend a hand extend a heartfelt thank extend a hearty welcome

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。

backup —