Not able to input Traditional Chinese by ibus - I use Quick Input Method.

after installing 14.04, I found that I cannot input Traditional Chinese in any program.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: ibus 1.5.5-1ubuntu3
ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9
Uname: Linux 3.13.0-24-generic x86_64
ApportVersion: 2.14.1-0ubuntu3
Architecture: amd64
CurrentDesktop: Unity
Date: Sat Apr 19 01:40:28 2014
InstallationDate: Installed on 2014-04-18 (0 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
ProcEnviron:
 LANGUAGE=en_HK:en
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_HK.UTF-8
 SHELL=/bin/bash
SourcePackage: ibus
UpgradeStatus: No upgrade log present (probably fresh install)