"1" and "Four donkey kong" refer to the four major cities in the real estate industry in China, namely, Beijing, Shanghai, Shenzhen and Guangzhou. These four cities play an important role in economy, culture and population, and are considered as the core cities of China real estate market.

2. Dragon Ball refers to seven major cities in China, namely, Hangzhou, Suzhou, Nanjing, Hefei, Wuhan, Chengdu and Chongqing. These cities have a high reputation and influence in Wan Wen industry.