First of all, even if you decide to postpone, you need to accept the offer and pay the deposit first. If you decide that you can't go to school as scheduled this year, you need to email the school to explain the situation and get the school's permission. Then, after accepting the offer and paying the deposit, the online application system will appear a form asking whether to postpone it, and directly enter relevant information in the form, such as the project you have accepted, whether to decide to postpone it, and when to postpone it. , and then click Submit. JHU also has an additional requirement, that is, students who have been confirmed to postpone to 202 1 autumn need to pay a deposit of 2,000 yuan between 1 1. 15 and 12. 1 this year to reserve places.