Abnormal termination of the contract due to dissatisfaction category email list of the students may be staged, and the institution may be improved and upgraded, and it may be recognized again and signed up again; students who terminate the contract at the end of the normal semester may also be temporarily terminated. If the primary course is completed, the contract will be terminated normally after the course is completed, and it is possible to sign up category email list for the advanced course again later.

The student information before the signing of the contract category email list and after the contract is terminated will enter the public recycling pool, which will be weighed and recycled to generate greater commercial value. The public recycling pool has a wide range of data sources. In the lead stage, the list filtered during the follow-up process enters the recycling pool; In the potential customer stage, the list of category email list unconverted signings will enter the recycling pool;

In the contract cancellation stage, the contract category email list cancellation information enters the recycling pool uniformly. The list entered into the recycling pool can be scored and weighed from different dimensions, and the value of its reusable transformation can be judged for follow-up again. It can be initially defined as an adult, and there is no need category email list to define it as a minimum value list, and no follow-up is required.