I can't. Escort, a brand of preschool education that cooperates with partners, is suitable for children aged 0- 12. In the escort service purchase agreement, it is stated in the rights and obligations of the user that after the user opens the service, the service cannot be cancelled in the middle of the opened service period, and the service is valid from the opening date of the escort children's song service, subject to the time limit for the user to select and pay the corresponding fees.