1. We welcome and support the legal use of the database for academic purposes. It is strictly prohibited to use the third-party software to steal or split the data. Once the infringement is found, the illegal IP is permanently banned and made public.

2. Our company has recently found that some users adopted the third-party software to illegally split data during the trial period, so we have to limit the trial users to read one-third pages of a book. We appreciate your understanding.