Merge pull request #544 from hyaocuk/master

[翻译中/translating] 'Daily Ubuntu Tips–Change The Language You Use In Ubuntu'
发布：Interview with Ding Zhou of Ubuntu Tweak
发布：Intel Haswell Linux Virtualization- KVM vs. Xen vs. VirtualBox
Merge pull request #546 from hyaocuk/master

[翻译完成] 'Daily Ubuntu Tips–Change The Language You Use In Ubuntu'
Merge pull request #2 from LCTT/master

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