| 单词 | upgradation |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔upgradation〕The Centre has approved projects worth about Rs 40 crore for the upgradation of industrial estates in the city.中心批准了价值4亿卢比的项目，对城内的工业区进行升级改造。剑桥高阶 |
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