In additional, Because the Maps runs when i set the locale to ‘en_US’ in 'Settings', I tried to forge a ‘en_US’ environment by changing the environment variablies in my Chinese locale.

I run “LANG=en_US /usr/bin/nokia-maps”.....loading forever..
I run "LC_ALL=en_US /usr/bin/nokia-maps".....loading forever..
I run "export LANG=en_US" then "/usr/bin/nokia-maps"......loading forever..
I run "export LC_ALL=en_US" then "/usr/bin/nokia-maps"......loading forever..

I thought it only relate to the environment variablies, but now, It seems not so easy...

Now, I have no idea.....