| 单词 | 更新换代 |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔industry〕In the computer industry, change comes about very rapidly.计算机这一行更新换代非常迅速。牛津搭配〔upgrade〕Helicopters have been upgraded and modernized.直升机已经更新换代, 装配了现代化设备。外研社新世纪〔upgrade〕Helicopters have been upgraded and modernized.直升机已经更新换代，装配了现代化设备。柯林斯高阶 |
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