Ok, I give up my 30 days continuous blog,
but i will keep blogging as much as possible.

As there are disqus comments appeared,
I found that the UTF8 url send to disqus is actually incorrect, UTF8 characters is removed.
And as i cannot found a bug logged,
the temp. solution is remove UFT8 from generated path from pathauto
and report a bug. http://drupal.org/node/1809742