1. qualification: the content of Lao hangzhai talk is reliable. The policies mentioned in Hangzhou, such as purchase restriction policy, settlement policy and new house lottery policy, are all publicized. Relevant information can be found on the government department official website, which supports the old Hangzhou dialect.
2. Word-of-mouth: Tan Fang, an old airline, has an excellent word-of-mouth in the industry and is well received.