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
Merge pull request #70 from particle128/master

july30 patch
daily translating patch jul 30
daily translating patch jul 31
july31 batch
Merge pull request #71 from particle128/master

july31 batch
Aug 1 patch
Merge pull request #72 from particle128/master

Aug 1 patch
daily translating patch aug 1