These are pre-beta versions, not suitable for production use.
这些都是预先测试版本，不适合生产使用。
The attendees of those two conferences will have the opportunity to see pre-beta builds of Windows 7.
这两个大会的参会人员将有机会看到Windows7的预览版。
Right now, that means that you have to use special pre-release versions, because it’s not even in beta yet.
现在，这意味着你必须使用特殊的预览发布版本，因为它甚至还不是测试版。
In addition to Turbo, Opera's 10 beta 3 also incorporates 38 languages and builds upon the browsers pre-existing design features.
除了Turbo之外，Opera10beta3还拥有38国语言包，并改进了现有的界面设计。
Sorry we didn't get a chance to pre-announce these changes before the data were pushed to the beta.
非常抱歉，我们没有在实装这些改动之前事先声明一下。
Sorry we didn't get a chance to pre-announce these changes before the data were pushed to the beta.
非常抱歉，我们没有在实装这些改动之前事先声明一下。
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