Merge pull request #67 from particle128/master

Jul 20 daily translating patch
daily translating patch jul 20
translating on July 21st
Merge pull request #68 from spacewander/master

translating on July 21st
daily translating patch jul 21
daily translating patch jul 22
daily translating patch jul 23
daily translating patch jul 25
翻译了几条
Merge pull request #69 from gdqyn/master

七条翻译
daily translating patch jul 26
daily translating patch jul 27
daily translating patch jul 29
daily translating patch jul 29
july30 patch