英语词汇upgrading of systems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	upgrading of systems
释义	upgrade v — 升级 v • 改良 v • 提拔 v • 晋升 v upgrade n — 升级 n • (计算机)升级 n upgrade — 更新 • 升格 • 擢升 • 换新 of — 的 systems pl — 体系 pl system n — 制 n • 体 n • 制度 n • 体制 n • 制式 n • 装置 n • 条贯 n
随便看	is established for more than 5 years is established having is established pursuant is established since is established that is established through is established through is established to conduct is established to cover is established with is established with is establishing is establishment is establishment is esteemed as is esteemed as is estimated is estimated is estimated additionally is estimated at approximately is estimated at approximately is estimated at more than is estimated by considering is estimated for is estimated from

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。

upgrade v —