我想把
http://www.abc.com/news/******

转跳到

http://news.abc.com/


各种例子可能

http://www.abc.com/news/game => http://news.abc.com/game

http://www.abc.com/news/game/20140607/1235.html => http://news.abc.com/game/20140607/1235.html

那.htaccess应该怎样才能实现。