RewriteEngine on
RewriteBase /

# rewrite english blog
RewriteRule enblog(.*) /blog/$1
RewriteCond %{REQUEST_FILENAME} !-f [OR]
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule enblog/(.*) /blog/index.php [L]

# rewrite milk blog
RewriteRule milklog(.*) /blog/$1
RewriteCond %{REQUEST_FILENAME} !-f [OR]
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule milklog/(.*) /blog/index.php [L]