我们check-in的时候，我调侃式的问蓝眼睛的前台，可不可以有free upgrade（免费升级房间）的机会，他说非常抱歉暂时没有，“But, i can give you a great room”，事实证明，他给我们的这个房间还是非常不错滴，不用出门...
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free upgrade coupon 微软免费升级折价券
upgrade free 免费升级
Software upgrade for free 软件免费升级
Responsible for software free upgrade service.
负责软件的免费升级服务。
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Upon check-in, I received a free upgrade to their Executive Floor.
在登记入住的时候我被免费的升级到了行政楼层。
And now someone wants to know if he can get a free upgrade from his original iPHone.
现在有人在问是否能免费升级自己的老版iPhone。
Playbook 2.0, a free upgrade, adds a built-in email function to the device which was first launched in April 2011.
BBC: Blackberry-maker RIM releases late Playbook OS upgrade
Beginning today, new qualified customers can get a free upgrade to Genie, as well as connect up to four rooms.
ENGADGET: DirecTV Genie DVR and interface launch with advice for the indecisive
The app is available for free upgrade in the iPhone App Store.
ENGADGET: Redbox now has an app for Android, updated app for iPhone
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