I have not written blog for a long time. There are two reasons, one is because of busy work and the other is my laziness. I have come back from Chongqing for almost one month, but I didn't write a blog at all. Chongqing is the youngest municipality of China, which is not very famous for its tourism, but it has a lot of fantastic nature and culture heritages, such as Wulong and Dazu.