The main purpose of paperback is "joint comparison database of colleges and universities", and it is also the knowledge base of HowNet, which is guaranteed.

Now some third parties, such as paper, will launch some free duplicate search words. However, it is not recommended, and there is a big gap with HowNet and VIP. The specific gap is related to the database and detection algorithm, which is more metaphysical. Therefore, we can only try to modify it in the early stage, and it is best to choose the same system as the school to check it again.