Merge pull request #1 from CocoaChina-editors/master

merge update
增加A.3-1 About the Language Reference翻译

增加A.3-1 About the Language Reference翻译
Merge pull request #48 from dabing1022/ChildhoodAndyTranslation

添加A.3-1 About the Language Reference翻译
add translated content to 01/02
Merge pull request #50 from numbbbbb/master

add translated content to A.1-2
add translated content to 01/01
Merge pull request #51 from numbbbbb/master

add translated content to A.1-1
Merge pull request #1 from CocoaChina-editors/master

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