...国对Vista家庭初级进级版(Vista Home Premium Upgrade)、Vista旗舰版(Vista Ultimate)和Vista旗舰进级版(Vista Ultimate Upgrade)的贬价幅度分别为18。8百分、20百分和15。
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vista ultimate upgrade
Vista终极升级
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Even then, you cannot upgrade to a lesser version-say, from Vista Ultimate to a Windows 7 Home Premium.
即便如此，你不能升级至较低版本——即是说，不能从Vista旗舰版升级至Windows 7家庭高级版。
youdao
Upgrades will be tier-for-tier, with Vista Home Premium users getting to switch up to Windows 7 Home Premium when the time is right, Vista Business to Windows 7 Professional, and Vista Ultimate users getting an upgrade to Windows 7 Ultimate.
ENGADGET: Windows 7 upgrade details released?
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