since 3.3.5 the chinese names in your friend list appears as ???.
To fix it simply make a copy of "arialn.ttf" located in the folder wow/Fonts and rename it "FRIENDS.tff"
That will solve the problem.
When you log on a realm type "/join english
" to get in touch with the community members.
WoW English/Chinese glossary
(2000+ translated words) found on wow-in-chinese.jfs-web.chEnglish speakers are consolidating on the same realm for Cataclysm check this thread