It started to publish on Jan 9th , 2012 .
Now the latest version was V3. 9.0 , which including 400 teachers over 12 countries and regions , e.g. , China , Hong Kong , Macau , Taiwan , Japan , United States , UK , Singapore and Germany .
It started to publish on Jan 9th , 2012 and now the latest version was V3. 9.0 , which including 400 teachers over 12 countries and regions , e.g. , China , Hong Kong , Macau , Taiwan , Japan , United States , UK , Singapore and Germany .