upgrade 基本解释
n. 向上的斜坡
vt. 提升；使（机器、计算机系统等）升级；提高（设施、服务等的）档次；提高（飞机乘客、旅馆住客等）的待遇
upgrade 词性变化
过去分词:upgraded 现在分词:upgrading 名词复数形式:upgrades 过去式:upgraded 第三人称单数:upgrades
词组短语
1、ghetto upgrade
2、index upgrade [计] 索引改进
3、on the upgrade 上升, 进步
4、processor upgrade [计] 处理机升级
5、upgrade set [计] 高层集
6、Cheyenne Mountain Upgrade 夏安山升级
7、New Threat Upgrade 新威胁升级
8、Accelerator Test Stand Upgrade 加速器试验台升级
9、Upgrade Pilot Training 升级试点培训
10、upgrade performance 升级性能
11、Upgrade Nuclear Ordnance Logistics 升级核军械物流
12、Upgrade Nuclear Ordnance Logistics System 升级核军械后勤系统
13、upgrade installation 升级安装
14、upgrade to 提高到…标准
15、upgrade options 升级选项
16、upgrade process 升级过程
17、Upgrade Training 升级培训
18、upgrade competitiveness 提升竞争力
19、upgrade existing enterprises 提升现有企业
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