Problems With Url Manager


I have this website --> It has the following URL Manager:





                '<lang:\w+>-<action:\w+>'=> 'site/<action>',



The site works well, but please notice this hyphen: <lang:\w+>-<action:\w+>. I would like to put a slash (<lang:\w+>/<action:\w+>) instead of the hyphen but if I do so the site doesn’t display well.

Anyone knows why putting a slash the site works badly?


What is the result?