【upgrade音标】 英[ˌʌpˈɡreɪd] 美[ˌʌpˈɡreɪd]
【单词释义】 upgrade是什么意思：
n.升级；上坡；改善，提高档次v.提升；升级；提高；改善；升舱；升职adj. 向上坡的；向上的adv. 向上，向上坡
[单词分级] 英语六级/考研词汇
[单词复数] upgrades [第三人称单数] upgrades
[单词现在分词] upgrading
[单词过去式] upgraded
[单词过去分词] upgraded
【upgrade形近词/近似词】
degrade v.降低，贬低；降解，分解；使降级
grade n.等级；成绩等级；年级
centigrade adj.摄氏的；百分度的
【单词例句】
◇ The mobile phone is a good example of how something that is technologically sophisticated can almost be given away,with its cost recovered through service charges. Users are then coerced through clever marketing to upgrade to newer phones with more features to reinforce their dependence.
移动电话就是一个很好的例子，它说明复杂的技术也可以攻克。通过改变服务来重新获得成本。在敏锐的市场，被迫升级为有更多功能的，更新的电话以加强信任度。