Step 0. 第零步 open [Activity Monitor] in your launchpad. 在你的launchpad中打开[Activity Monitor] Step 1. select the process which is named [Simplified Chinese Input Method] 选择[Simplified Chinese Input Method] Step 2. Click the button on the upper-lift corner to close [Simplified Chinese Input Method]. 点击左上角的那个叉叉 关闭这个程序 Step 3. Then try to change your input method to Chinese again. 然后你再次切换输入法到中文 It’s done. EOF.