In my document (due to combind both Chinese and English), all (, ), [, ], etc., are all too low. Is it posibble to raise all (, ), [, ], or any characters user defines to desire height? (for ex. If I want to raise all 'z' for 3pt?)
Thank you so much!

ex. – Christian Lindig Mar 20 '11 at 6:57xeCJK. I'm sorry I've no much time for this. See also bbs.ctex.org/… – Leo Liu Mar 20 '11 at 8:21