MIUI 7 Google Calendar sync problem

Recently, I found that, the calendar item (agenda) created in MIUI 7 Calendar does not sync to my Google Calendar. Then I ignore it.

And until today, I found that, the agenda from Google Calendar does not sync to MIUI7 Calendar too. Then this will be serious. So, I search around the forum, and finally get this solution.

Install Google Calendar! This will solve the calendar syncing problem. Enjoy!

My favourite Thunderbird add-ons

Since I tried on Evolution of Ubuntu, an email client just like Microsoft Outlook, with PIM (Personal Information Manager) features, allows using IMAP, and allows synchronization. I really like it. So I tried to install Evolution for Windows. However, Evolution for Windows cannot work properly on Windows 7. Then, I need to switch back to Thunderbird. Since I like the feature of PIM and the synchronization with GMail and Google Calendar, I have installed following add-ons: